DHA / DOH / MOH exam (UAE) obstetrics & gynecology questions

Threatened miscarriage is defined as vaginal bleeding in early pregnancy with a closed cervical os and a live fetus confirmed on ultrasound. The pregnancy may continue normally, and a subchorionic hematoma is a common incidental finding that does not by itself indicate an adverse outcome. Inevitable miscarriage requires an open cervical os, while incomplete and missed miscarriage require evidence of fetal demise or retained products. Management is expectant with reassurance and follow-up scanning.

• A. Missed miscarriage requires absence of fetal cardiac activity, which is present in this case.
• B. Incomplete miscarriage implies partial expulsion of products of conception with retained tissue on ultrasound, not a live fetus.
• C. Inevitable miscarriage requires an open internal cervical os, which is not present here.

In a hemodynamically stable woman with a confirmed missed miscarriage, current guidelines recommend offering a choice between expectant management, medical management with misoprostol (often preceded by mifepristone), or surgical evacuation, based on patient preference and clinical circumstances. There is no absolute indication for emergency intervention when the woman is stable and asymptomatic. Shared decision-making improves patient satisfaction without worsening outcomes. Surgical management is reserved for cases with heavy bleeding, infection, or patient preference after counseling.

• A. Immediate surgery is not mandatory in a stable patient; expectant or medical management are equally valid first-line options.
• B. Laparotomy is not indicated for a missed miscarriage, which is managed via medical or minimally invasive surgical methods.
• C. Oxytocin is not first-line for early pregnancy loss; misoprostol is the preferred medical agent at this gestation.

Amenorrhea, a positive pregnancy test, unilateral adnexal pain, and a tender adnexal mass in a woman with a prior history of pelvic inflammatory disease strongly suggest ectopic pregnancy, as tubal damage from salpingitis is a major risk factor. The combination of pregnancy test positivity with adnexal findings distinguishes it from other acute abdominal or pelvic conditions. Prompt transvaginal ultrasound and serum beta-hCG are needed to confirm the diagnosis before rupture occurs. Early recognition is critical because ectopic pregnancy is a leading cause of first-trimester maternal mortality.

• A. Appendicitis would not typically present with amenorrhea and a positive pregnancy test, nor a tender adnexal mass on bimanual exam.
• B. A degenerating fibroid does not explain amenorrhea with a positive pregnancy test and is not associated with prior pelvic inflammatory disease.
• D. A ruptured ovarian cyst does not explain the positive pregnancy test and amenorrhea.

When beta-hCG is below the discriminatory zone (typically 1500-2000 IU/L for transvaginal ultrasound, though some centers use up to 3500 IU/L) and no intrauterine or ectopic pregnancy is visualized, the appropriate step is serial beta-hCG measurement 48 hours apart rather than immediate intervention. A normally rising intrauterine pregnancy should show an increase of at least 53% in 48 hours, while a plateauing or slowly rising value raises concern for ectopic pregnancy. This conservative approach avoids unnecessary intervention in a stable patient with a pregnancy of unknown location. Definitive diagnosis is then guided by the trend in hCG combined with repeat ultrasound.

• A. Methotrexate requires a confirmed diagnosis of ectopic pregnancy, which has not yet been established here.
• C. Curettage is inappropriate without confirming an intrauterine pregnancy, and risks disrupting a viable early pregnancy or missing an ectopic.
• D. Laparoscopy is invasive and not indicated before confirming the location of the pregnancy with hCG trends and repeat imaging in a stable patient.

Methotrexate is most successful when the ectopic mass is small (generally under 3.5-4 cm), beta-hCG is relatively low (ideally under 5000 IU/L), there is no fetal cardiac activity, and the patient is hemodynamically stable with normal renal and liver function. This patient meets all these criteria, making her an excellent candidate for medical management, which avoids surgery and preserves tubal function. High hCG levels, larger mass size, or presence of significant free fluid suggesting rupture are relative or absolute contraindications favoring surgical treatment instead.

• A. A beta-hCG above 5000 IU/L is associated with higher methotrexate failure rates and is a relative contraindication.
• C. A larger gestational sac diameter is associated with lower methotrexate success rates and favors surgical management.
• D. Significant free fluid suggests possible rupture or hemoperitoneum, which is a contraindication to medical management.

Hemodynamic instability with signs of hemoperitoneum, including hypotension, tachycardia, and free fluid extending to Morrison's pouch, indicates a ruptured ectopic pregnancy requiring immediate surgical intervention. Intravenous fluid resuscitation and type and crossmatch should be initiated simultaneously with urgent transfer to the operating room, as delay increases the risk of fatal hemorrhage. Medical management with methotrexate and conservative approaches are contraindicated once rupture with hemodynamic compromise has occurred. This is a surgical emergency requiring a multidisciplinary response involving anesthesia and blood bank services.

• A. Methotrexate is contraindicated in a ruptured ectopic pregnancy with hemodynamic instability; this requires emergency surgery.
• B. Expectant management is dangerous and inappropriate in a patient with signs of hypovolemic shock from suspected rupture.
• C. Serial hCG testing is inappropriate when there is evidence of acute hemorrhage and shock requiring immediate intervention.

The first antenatal booking visit, ideally before 10 weeks of gestation, includes a comprehensive set of baseline investigations: full blood count to detect anemia, blood group and antibody screen for Rh status, and infectious disease screening for rubella immunity, hepatitis B, HIV and syphilis. These results guide risk stratification and allow timely interventions such as antiviral therapy or partner notification. The oral glucose tolerance test and anomaly scan are performed later in pregnancy at their appropriate gestational windows. Booking bloods also inform decisions on iron supplementation and anti-D prophylaxis planning.

• A. The anomaly scan is performed at 18-20 weeks of gestation, not at the first booking visit.
• B. Aspirin for pre-eclampsia prevention is a treatment decision made after risk assessment, not an investigation at booking.
• D. The oral glucose tolerance test is performed at 24-28 weeks unless risk factors mandate earlier testing, not at booking.

Combined first-trimester screening, incorporating maternal age, nuchal translucency thickness, PAPP-A and free beta-hCG, must be performed between 11 weeks 0 days and 13 weeks 6 days of gestation, when the crown-rump length is between 45 mm and 84 mm. This window allows accurate nuchal translucency measurement and biochemical marker interpretation to calculate individual risk for trisomy 21, 18 and 13. Testing outside this window reduces accuracy of the nuchal translucency component. Women presenting after this window are offered second-trimester serum screening instead.

• B. This window falls after the first-trimester screening period and nuchal translucency measurement is no longer reliable.
• C. This corresponds to the second-trimester quadruple screening window, not combined first-trimester screening.
• D. This is the gestational window for the detailed anomaly scan, not aneuploidy screening.

Using the IADPSG criteria adopted by WHO, gestational diabetes mellitus is diagnosed if any single value on the 75 g OGTT meets or exceeds the following thresholds: fasting plasma glucose 5.1 mmol/L, 1-hour 10.0 mmol/L, or 2-hour 8.5 mmol/L. This patient's 1-hour value of 10.2 mmol/L and 2-hour value of 8.9 mmol/L both exceed the diagnostic thresholds, confirming the diagnosis even though the fasting value alone is only mildly elevated. Only one abnormal value is required for diagnosis, unlike the two-step approach used in some other guidelines. Management begins with lifestyle and dietary modification, with pharmacologic therapy reserved for inadequate glycemic control.

• A. The fasting value of 5.6 mmol/L actually exceeds the diagnostic threshold of 5.1 mmol/L, and two other values are also abnormal.
• C. A single abnormal OGTT in pregnancy without prior history indicates gestational diabetes, not overt pre-existing diabetes, and insulin is not automatically first-line.
• D. This is not an accepted diagnostic category; the values already meet criteria for gestational diabetes.

Rh-negative women with a negative antibody screen should receive routine antenatal anti-D immunoglobulin prophylaxis at around 28 weeks of gestation to prevent alloimmunization from silent fetomaternal hemorrhage. Anti-D is also indicated after any potentially sensitizing event, such as miscarriage, amniocentesis, abdominal trauma, or antepartum hemorrhage, and again postpartum if the baby is confirmed Rh-positive. A negative antibody screen confirms she is not yet sensitized, making prophylaxis both appropriate and effective. This strategy has dramatically reduced the incidence of hemolytic disease of the newborn. Non-invasive fetal Rh genotyping is not routinely required before antenatal prophylaxis in standard practice.

• A. Relying on postpartum anti-D alone misses the antenatal prophylaxis window, increasing the risk of sensitization during pregnancy.
• B. A negative antibody screen confirms she is not sensitized; sensitization would show a positive indirect Coombs test.
• D. Routine practice does not require invasive fetal blood sampling before giving antenatal anti-D prophylaxis.

Universal screening for group B Streptococcus colonization is performed by vaginal-rectal swab at 36 to 37 weeks of gestation, since colonization status can change over time and testing too early would not reflect status at delivery. Women with a positive culture receive intrapartum antibiotic prophylaxis, typically intravenous penicillin or ampicillin, started at the onset of labor or rupture of membranes and continued until delivery, to prevent early-onset neonatal GBS sepsis. Intrapartum prophylaxis is also given regardless of culture result if GBS bacteriuria was detected during the current pregnancy, if a previous infant had invasive GBS disease, or if GBS status is unknown and risk factors such as preterm labor or maternal fever are present. Postnatal treatment of an already-infected neonate is management of established disease, not the prevention strategy screening is designed to achieve.

• B. Waiting for neonatal sepsis to develop defeats the purpose of prophylaxis, which is given based on antenatal culture results, not after infection occurs.
• C. Universal intrapartum prophylaxis without screening is not standard practice; prophylaxis is targeted to culture-positive or risk-factor-positive women.
• D. Colonization status can change throughout pregnancy, so a swab at 20 weeks would not reliably predict status at delivery.

Gestational hypertension is defined as new-onset hypertension developing after 20 weeks gestation in a woman who was normotensive before pregnancy, without proteinuria or other features of end-organ dysfunction. This patient had a normal blood pressure documented early in pregnancy and only became hypertensive at 30 weeks, with normal laboratory parameters, fitting this definition exactly. Chronic hypertension is present before 20 weeks or before pregnancy, which is excluded by her normal early reading. The distinction matters because gestational hypertension carries a risk of progression to preeclampsia and requires ongoing surveillance for proteinuria and end-organ dysfunction.

• B. Chronic hypertension requires elevated blood pressure documented before 20 weeks gestation or pre-pregnancy, which this patient did not have.
• C. Preeclampsia requires proteinuria or evidence of end-organ dysfunction in addition to hypertension, both of which are absent here.
• D. White coat hypertension refers to elevated readings only in a clinical setting with normal ambulatory readings, which has not been assessed here.

Labetalol is a first-line oral antihypertensive agent for the management of non-severe hypertension in pregnancy, alongside nifedipine and methyldopa, according to current international guidelines including ACOG and NICE. It acts as a combined alpha- and beta-adrenergic blocker, lowering blood pressure while maintaining uteroplacental perfusion, and has an established safety record in pregnancy. ACE inhibitors and angiotensin receptor blockers are contraindicated throughout pregnancy because of fetotoxicity, including oligohydramnios, renal failure and skull ossification defects. Atenolol is avoided because it has been associated with fetal growth restriction.

• A. Atenolol is associated with fetal growth restriction and is not recommended as first-line therapy in pregnancy.
• B. Angiotensin receptor blockers such as losartan are contraindicated in pregnancy for the same teratogenic and fetotoxic reasons as ACE inhibitors.
• C. ACE inhibitors such as enalapril are contraindicated in pregnancy due to risk of fetal renal failure and other fetopathy.

Absent deep tendon reflexes combined with respiratory depression (respiratory rate under 12 breaths/min) are signs of magnesium toxicity, which occurs because magnesium blocks neuromuscular transmission at high serum levels. The immediate management is to stop the magnesium infusion and give intravenous calcium gluconate, which directly antagonizes magnesium at the neuromuscular junction and reverses toxicity. Loss of reflexes is typically the earliest clinical sign of rising magnesium levels, occurring before respiratory depression and cardiac arrest, so reflexes should be checked regularly during therapy. Clinical monitoring of respiratory rate, oxygen saturation, reflexes and urine output is used in practice since serum magnesium levels are not always immediately available.

• A. Diazepam would worsen respiratory depression and does not address the underlying cause of the sedation, which is magnesium toxicity.
• C. Increasing the infusion rate would worsen magnesium toxicity and could precipitate respiratory arrest or cardiac arrhythmia.
• D. Continuing the infusion without intervention risks progression to respiratory arrest; absent reflexes and respiratory depression require immediate action, not delayed reassessment.

This patient has preeclampsia with severe features: systolic blood pressure ≥160 mmHg or diastolic ≥110 mmHg, thrombocytopenia, elevated liver enzymes with epigastric pain, and renal impairment with rising creatinine, along with severe headache and visual disturbance. Severe features mandate magnesium sulfate for seizure prophylaxis, control of severe hypertension, and delivery planning regardless of gestational age once the mother is stabilized, since maternal and fetal risks of continued pregnancy outweigh the risks of prematurity. At 32 weeks, delivery is still pursued after stabilization, though corticosteroids may be given if time permits; expectant management is not appropriate with multiorgan involvement. Outpatient management is contraindicated given the severity of findings.

• B. Severe features of preeclampsia require inpatient stabilization and delivery, not outpatient discharge, due to risk of eclampsia, stroke, or organ failure.
• C. Oral labetalol with delayed follow-up is inadequate for severe hypertension and does not address the need for seizure prophylaxis or delivery planning.
• D. Expectant management until term is inappropriate once severe features with multiorgan dysfunction are present; the pregnancy should be ended after maternal stabilization.

HELLP syndrome is diagnosed by the combination of hemolysis (evidenced by schistocytes on peripheral smear, elevated lactate dehydrogenase, and low hemoglobin), elevated liver enzymes, and low platelet count, typically occurring as a severe variant of preeclampsia in the third trimester. This patient demonstrates all three components: schistocytes and elevated LDH indicating microangiopathic hemolysis, elevated AST reflecting hepatocellular injury, and thrombocytopenia. HELLP syndrome is a medical emergency requiring prompt evaluation for delivery, as it is associated with risks of hepatic rupture, disseminated intravascular coagulation, and placental abruption. Coagulation studies are usually normal in uncomplicated HELLP unless disseminated intravascular coagulation has developed.

• A. Prolonged prothrombin time and low fibrinogen suggest disseminated intravascular coagulation, which is a complication rather than the primary diagnostic triad of HELLP syndrome.
• C. HELLP syndrome is characterized by low, not normal, platelet count, and white cell count is not part of its diagnostic criteria.
• D. HELLP syndrome involves elevated liver enzymes, not normal ones, along with hemolysis and thrombocytopenia.

Vasa previa occurs when fetal vessels run unsupported through the membranes over the cervix, often associated with a bilobed or succenturiate placenta, velamentous cord insertion, or IVF pregnancies. Rupture of membranes can tear these vessels, causing rapid fetal bleeding that presents as painless bright red vaginal bleeding immediately after amniotomy or spontaneous rupture, with an acute fetal bradycardia or sinusoidal trace because the blood lost is fetal, not maternal. Maternal vital signs remain stable since the hemorrhage is from the fetal circulation. Immediate delivery, usually by emergency cesarean section, is required to save the fetus.

• A. Marginal sinus rupture causes painless bleeding but does not typically cause this abrupt, severe fetal bradycardia tied temporally to membrane rupture.
• B. Placental abruption typically causes painful bleeding with a tender, tense uterus and maternal hemodynamic compromise, not isolated fetal bradycardia after rupture of membranes.
• C. Uterine rupture presents with severe abdominal pain, loss of contractions, and maternal shock, usually in a woman with a prior cesarean scar.

The soft, boggy uterus indicates uterine atony, the most common cause of primary postpartum hemorrhage, and the initial management is uterine massage combined with first-line uterotonic therapy, usually intravenous oxytocin. This mechanically and pharmacologically stimulates myometrial contraction to compress the spiral arteries and control bleeding. Since the placenta is complete and no lacerations are seen, retained tissue and trauma are unlikely causes, making exploration under anesthesia premature. Balloon tamponade and hysterectomy are escalation steps reserved for cases where uterotonics and massage fail to control bleeding.

• A. Hysterectomy is a last resort reserved for life-threatening hemorrhage unresponsive to all conservative and surgical measures.
• B. Balloon tamponade is a second-line measure used after uterotonics and massage fail to control atonic bleeding.
• C. The placenta is reported complete with no evidence of retained tissue, so immediate examination under anesthesia is not the first step.

When uterine atony persists despite oxytocin, second-line uterotonics such as intramuscular carboprost (a prostaglandin F2-alpha analogue) are indicated, as it produces potent sustained myometrial contraction. Carboprost is avoided in asthmatics due to bronchospasm risk, which this patient does not have, making it appropriate here. Misoprostol is a reasonable alternative when carboprost is unavailable or contraindicated but is generally considered less potent and slower acting than carboprost or ergometrine in this escalation step. Magnesium sulfate and terbutaline are tocolytics that relax the uterus and would worsen hemorrhage.

• A. Magnesium sulfate is a tocolytic used for preterm labor or eclampsia prophylaxis and would relax the uterus, worsening bleeding.
• B. Terbutaline is a beta-agonist tocolytic that relaxes the myometrium and is contraindicated in postpartum hemorrhage.
• C. Oral misoprostol is a weaker and slower option compared to parenteral carboprost in this escalation setting and is not preferred when carboprost is available and not contraindicated.

The Four T's mnemonic for postpartum hemorrhage causes includes Tone (atony), Tissue (retained products), Trauma (lacerations), and Thrombin (coagulopathy). Chorioamnionitis and prolonged rupture of membranes are recognized risk factors for uterine atony because inflammatory mediators and infection impair the myometrium's ability to contract effectively, leading to a soft, poorly contracted uterus unresponsive to initial uterotonics. Since the placenta was delivered complete and no laceration is found, tissue and trauma causes are excluded. Coagulopathy is not suggested by the clinical picture without signs of diffuse bleeding from puncture sites or mucous membranes.

• A. No cervical or perineal laceration was found on examination.
• B. The placenta was reported complete, making retained tissue an unlikely cause.
• D. There are no clinical features here suggesting a consumptive coagulopathy such as oozing from venipuncture sites.

A cervical dilation rate of less than 1 cm per hour in the active first stage of labor, with the plot crossing to the right of the action line on the partogram, defines prolonged first stage of labor. In this scenario, the most common underlying mechanism is inadequate uterine activity, especially since contractions are only 3 in 10 minutes and the fetal head has not descended, without yet confirming disproportion. Management involves assessing contraction adequacy and considering amniotomy or oxytocin augmentation after reassessing the pelvis and fetal condition. Obstructed labor requires finding features such as caput, moulding, or an arrested station despite adequate contractions, which have not been established here.

• A. Precipitate labor refers to abnormally rapid labor and delivery, the opposite of what is shown on this partogram.
• B. Obstructed labor requires evidence of cephalopelvic disproportion such as severe moulding or caput formation, which is not described here.
• D. The latent phase is defined as cervical dilation up to 4 cm; this patient has progressed beyond that and is in the active phase.

This tracing shows recurrent late decelerations with preserved moderate variability, classified as a Category II tracing, which is indeterminate but warrants prompt conservative intrauterine resuscitation measures. The first steps are to discontinue oxytocin to reduce uterine activity, reposition the mother to the left lateral position to improve uteroplacental perfusion, and ensure adequate maternal hydration and oxygenation. Category II tracings do not mandate immediate delivery but require close reassessment after corrective measures. Terbutaline may be considered only if conservative measures fail to resolve a tachysystole-related pattern, and cesarean delivery is reserved for Category III tracings or Category II patterns that fail to improve.

• B. Continuing without intervention and waiting an hour risks fetal compromise; a Category II tracing with recurrent late decelerations requires prompt corrective action.
• C. Terbutaline is considered only after stopping oxytocin and repositioning fail to improve the tracing, not as the first step.
• D. Emergency cesarean is reserved for Category III tracings or Category II tracings that fail to improve despite conservative measures.

Umbilical cord prolapse is an obstetric emergency because compression of the cord between the fetal presenting part and the pelvis causes acute fetal hypoxia, reflected here by the severe prolonged bradycardia. Immediate management involves manually elevating the presenting part off the cord to relieve compression, positioning the mother in knee-chest or left lateral with hips elevated, and proceeding to emergency cesarean section without delay, as vaginal delivery is not imminent with a breech presentation and 6 cm dilation. Attempting to push the cord back into the uterus is not recommended practice. Oxytocin augmentation and further monitoring would dangerously delay delivery in a time-critical emergency.

• B. Attempting to manually reduce or push the cord back into the uterus is not a recommended maneuver and delays definitive delivery.
• C. Further rupture of membranes and reassessment delays delivery in a time-critical cord compression emergency and risks fetal death.
• D. Oxytocin augmentation would worsen cord compression and further delay necessary emergency delivery.

For heavy menstrual bleeding with no structural or histological abnormality, the levonorgestrel-releasing intrauterine system (LNG-IUS) is recommended by NICE and RCOG as the first-line medical option when long-term treatment is acceptable, because it reduces menstrual blood loss by up to 90% and provides contraception while preserving fertility potential. It works by causing endometrial decidualization and atrophy. Tranexamic acid is an effective non-hormonal alternative, particularly when a hormonal method is declined or contraception is not needed.

• B. GnRH agonists cause hypoestrogenic side effects and are used short-term, e.g., preoperatively, not as first-line therapy.
• C. Endometrial ablation is a surgical option reserved for women who have completed childbearing and failed medical therapy.
• D. Tranexamic acid is a good alternative but is considered after or alongside the LNG-IUS, not the preferred first choice when long-term treatment is acceptable.

Pregnancy is the most common cause of secondary amenorrhea and must always be excluded first, regardless of the stated sexual history, before pursuing other investigations. A urine or serum beta-hCG is rapid, inexpensive, and prevents inappropriate further hormonal testing or imaging in a pregnant patient. If pregnancy is excluded, the algorithm proceeds to prolactin, TSH, and FSH to evaluate for hyperprolactinemia, thyroid dysfunction, and ovarian insufficiency respectively.

• A. Prolactin is checked after pregnancy has been excluded.
• B. TSH is part of the work-up but only after pregnancy is ruled out.
• D. FSH helps distinguish ovarian from central causes but is not the first test performed.

The Rotterdam criteria require at least two of the following three features, with exclusion of other causes such as thyroid disease, hyperprolactinemia, and non-classic congenital adrenal hyperplasia: oligo/anovulation, clinical or biochemical hyperandrogenism, and polycystic ovarian morphology on ultrasound. This patient has oligomenorrhea, clinical hyperandrogenism (hirsutism) with biochemical confirmation, and polycystic ovaries, satisfying all three criteria. An elevated LH:FSH ratio and insulin resistance markers support but are not required for the diagnosis.

• A. Fasting insulin is not part of the diagnostic criteria for PCOS, though insulin resistance is commonly associated.
• B. Acanthosis nigricans suggests insulin resistance but is not a diagnostic criterion for PCOS.
• D. An elevated LH:FSH ratio is a supportive but non-diagnostic finding, not part of the formal criteria.

Letrozole, an aromatase inhibitor, is now recommended as first-line pharmacologic therapy for ovulation induction in women with PCOS-related anovulatory infertility, based on evidence showing higher live birth and ovulation rates compared with clomiphene citrate, with similar safety. It works by transiently lowering estrogen levels, which reduces negative feedback on the hypothalamic-pituitary axis and increases FSH secretion. Clomiphene citrate remains an acceptable alternative where letrozole is unavailable or not approved for this indication.

• A. Clomiphene citrate was previously first-line but has largely been superseded by letrozole, which has superior live birth rates in current guidelines.
• B. Metformin improves insulin sensitivity and is used as an adjunct, particularly with overweight or insulin-resistant PCOS, but is not first-line for ovulation induction alone.
• C. Gonadotropins are second-line, used after failure of oral agents, due to higher cost and risk of multiple pregnancy and ovarian hyperstimulation.

Premature ovarian insufficiency is diagnosed in women under 40 years with oligo/amenorrhea for at least 4 months and two serum FSH levels in the menopausal range (typically greater than 25-40 IU/L depending on the assay) measured at least 4-6 weeks apart, accompanied by low estradiol. This reflects loss of ovarian follicular function and reduced negative feedback, causing compensatory elevation of pituitary FSH. Confirmed cases warrant karyotype and autoimmune work-up, and hormone replacement therapy is recommended until the average age of natural menopause to protect bone and cardiovascular health.

• B. PCOS presents with oligomenorrhea but FSH is typically normal with a normal or elevated LH:FSH ratio, not a menopausal FSH.
• C. Hyperprolactinemia causes amenorrhea through suppressed GnRH pulsatility, with low or normal FSH, not elevated FSH.
• D. Hypothalamic amenorrhea is characterized by low or normal FSH and low estradiol, not an elevated FSH.

The classic triad of dysmenorrhea, dyspareunia, and dyschezia, together with infertility and a tender nodular posterior fornix, is highly suggestive of endometriosis. Laparoscopy with histological confirmation of ectopic endometrial glands and stroma remains the gold-standard diagnostic test, as it allows direct visualization of implants, adhesions, and endometriomas, with the option to treat lesions during the same procedure. MRI and ultrasound are useful for detecting deep infiltrating disease or endometriomas non-invasively but cannot definitively confirm the diagnosis.

• A. CA-125 may be elevated in endometriosis but lacks sensitivity and specificity for diagnosis.
• B. MRI is a useful non-invasive imaging tool for deep infiltrating endometriosis but is not the gold standard for definitive diagnosis.
• D. Hysterosalpingography assesses tubal patency and uterine cavity, not peritoneal or ovarian endometriotic implants.

Pelvic ultrasound, combining transvaginal and transabdominal views, is the first-line imaging modality for suspected uterine fibroids because it is widely available, inexpensive, and highly accurate at detecting fibroid number, size, and location, including when the uterus is enlarged beyond the pelvis. MRI is reserved as a second-line tool when ultrasound findings are inconclusive, when fibroid mapping is needed before myomectomy or uterine artery embolization, or to differentiate fibroids from adenomyosis or sarcoma.

• B. MRI gives superior anatomical detail but is costlier and used as a problem-solving or pre-operative planning tool, not the initial test.
• C. Hysteroscopy is useful for evaluating submucosal fibroids distorting the cavity but is invasive and not the first-line imaging choice.
• D. CT involves ionizing radiation and offers no advantage over ultrasound for uterine pathology.

Simple ovarian cysts are unilocular, anechoic, thin-walled, and avascular on Doppler, features consistent with benign functional cysts that can be managed with ultrasound follow-up. Thick irregular walls, solid papillary projections, septations over 2-3 mm, and increased internal vascularity (high color score on Doppler) are IOTA 'M-rules' suggestive of malignancy and warrant referral for further imaging and gynecologic oncology assessment. Size alone under 5 cm in a simple cyst is reassuring and not an indication for urgent workup. CA-125 is less reliable in premenopausal women due to false positives from benign conditions like endometriosis and fibroids.

• B. Absence of septations is a benign feature, not a red flag.
• C. A unilocular appearance is typical of benign simple cysts.
• D. Small size alone in a simple cyst is reassuring, not concerning.

Ovarian torsion is a surgical emergency diagnosed on clinical suspicion supported by ultrasound findings of an enlarged ovary with absent or reduced venous flow on Doppler. Delay in treatment risks irreversible ischemic damage and loss of the ovary, so urgent laparoscopy for detorsion (with cystectomy if an underlying cyst is present) is indicated to preserve ovarian function, even when arterial flow is still partially present. Waiting for repeat imaging or symptomatic management risks ovarian necrosis. Antibiotics have no role unless there is evidence of infection or necrosis requiring oophorectomy.

• A. Repeating imaging delays definitive treatment and risks ovarian loss.
• B. Discharge is inappropriate given the risk of ovarian infarction.
• C. Antibiotics do not address the mechanical vascular compromise of torsion.

A fluctuant Bartholin's gland abscess is best managed with incision and drainage followed by insertion of a Word catheter, which is left in place for 4-6 weeks to allow epithelialization of a new tract and reduce recurrence. Antibiotics alone do not adequately drain a fluctuant collection. Needle aspiration has a high recurrence rate because the cavity reseals quickly. Marsupialization is an effective alternative but is typically reserved for recurrent abscesses or performed in an operating room setting, not as the universal first-line option over Word catheter placement in a straightforward first presentation.

• A. Needle aspiration has a high recurrence rate compared to catheter drainage.
• B. Marsupialization is generally reserved for recurrent cases rather than first-line treatment.
• D. Antibiotics without drainage fail to resolve a fluctuant abscess.

This patient meets clinical criteria for pelvic inflammatory disease (lower abdominal pain with cervical motion or adnexal tenderness in a sexually active woman with pregnancy excluded), and empiric treatment should be started promptly without waiting for microbiologic confirmation to prevent complications such as tubo-ovarian abscess and infertility. Current guidelines recommend a single intramuscular dose of ceftriaxone combined with a 14-day course of oral doxycycline, with metronidazole added to cover anaerobic organisms, particularly if there is a risk of bacterial vaginosis or instrumentation. This regimen covers Neisseria gonorrhoeae, Chlamydia trachomatis, and anaerobes, the main pathogens implicated in PID.

• A. Fluconazole treats fungal infections and has no role in PID.
• B. Azithromycin alone does not provide adequate gonococcal or anaerobic coverage for PID.
• D. Metronidazole alone does not cover gonorrhea or chlamydia, the primary pathogens.

This presentation fulfills the Amsel criteria for bacterial vaginosis: homogeneous thin grayish discharge, vaginal pH greater than 4.5, positive whiff (amine) test with potassium hydroxide, and clue cells (epithelial cells with adherent coccobacilli obscuring cell margins) on microscopy, with at least three of four criteria required for diagnosis. Candidiasis typically presents with thick curdy white discharge and pruritus with normal pH. Trichomoniasis causes a frothy yellow-green malodorous discharge, often with vulvovaginal irritation and a strawberry cervix, and pH is also elevated but clue cells are absent. Atrophic vaginitis occurs in postmenopausal women with dryness and thinning, not a fishy-odor discharge with clue cells.

• A. Candidiasis presents with thick white discharge and itching, with normal vaginal pH, not clue cells.
• C. Trichomoniasis causes a frothy, malodorous discharge with vulvar irritation, not clue cells.
• D. Atrophic vaginitis occurs with estrogen deficiency and does not show clue cells or a positive whiff test.

Current guidelines recommend oral doxycycline 100 mg twice daily for 7 days as the first-line treatment for uncomplicated genital chlamydia infection in non-pregnant patients, as it has shown superior microbiologic cure rates compared with single-dose azithromycin, particularly for rectal chlamydia. Single-dose azithromycin remains an acceptable alternative when adherence to a 7-day course is a concern or in pregnancy, where doxycycline is contraindicated. Benzathine penicillin is used for syphilis, not chlamydia. Metronidazole treats trichomoniasis and bacterial vaginosis, not chlamydial infection.

• A. Benzathine penicillin is the treatment for syphilis, not chlamydia.
• C. Metronidazole has no activity against Chlamydia trachomatis.
• D. Azithromycin is an acceptable alternative but doxycycline is now preferred as first-line due to higher efficacy.

A tubo-ovarian abscess is a serious complication of pelvic inflammatory disease requiring hospital admission for intravenous broad-spectrum antibiotics covering gram-negative, gram-positive, and anaerobic organisms. If the abscess is large (commonly greater than 7-9 cm), fails to respond to 48-72 hours of antibiotics, or the patient remains septic, image-guided (ultrasound- or CT-guided) percutaneous drainage or surgical intervention should be considered. Continuing or switching oral antibiotics is inadequate once a tubo-ovarian abscess has formed, as outpatient oral therapy carries a high failure rate. Radical surgery such as bilateral salpingo-oophorectomy is reserved for cases of rupture, sepsis unresponsive to drainage, or when fertility preservation is not a concern, not as an immediate first step in a stable patient.

• A. Switching oral antibiotics does not address the need for admission and possible drainage.
• B. Oral antibiotics are inadequate once a tubo-ovarian abscess has formed and treatment has already failed.
• D. Radical surgery is excessive as an immediate step in a hemodynamically stable patient before a trial of antibiotics and drainage.

Any postmenopausal bleeding, regardless of amount or whether it recurs, is considered a red flag for endometrial carcinoma until proven otherwise and must be evaluated promptly. Transvaginal ultrasound measuring endometrial thickness is the first-line investigation; an endometrial thickness greater than 4-5 mm or persistent bleeding with a thin endometrium warrants endometrial biopsy or hysteroscopy. Reassurance without investigation risks missing malignancy, and empirical hormone therapy can mask or delay diagnosis. A Pap smear screens for cervical, not endometrial, pathology and is insufficient on its own.

• A. A Pap smear evaluates the cervix and does not assess the endometrium.
• B. Postmenopausal bleeding requires prompt evaluation, not watchful waiting.
• C. Empirical hormonal treatment without a diagnosis may delay detection of malignancy.

Obesity, diabetes mellitus, and unopposed estrogen exposure are classic risk factors for endometrial carcinoma because they increase peripheral conversion of androgens to estrogen or provide estrogen without progestin opposition, causing unchecked endometrial proliferation. Postmenopausal bleeding combined with a markedly thickened endometrium (greater than 4-5 mm) in a woman with these risk factors is highly suspicious for endometrial carcinoma and warrants endometrial biopsy. Cervical carcinoma more typically presents with postcoital bleeding and a visible cervical lesion rather than endometrial thickening. Leiomyomas and polyps can cause bleeding but are not strongly linked to this specific risk factor profile and typically show more focal, discrete ultrasound findings rather than diffuse thickening.

• B. Leiomyomas are not strongly associated with unopposed estrogen exposure as a primary risk factor and usually appear as discrete masses.
• C. Cervical carcinoma typically presents with postcoital bleeding and a visible cervical lesion, not isolated endometrial thickening.
• D. Endometrial polyps usually appear as focal lesions rather than diffuse endometrial thickening and are not classically linked to this risk profile.

CA-125 is not a reliable standalone diagnostic test because it can be elevated in benign conditions such as endometriosis, fibroids, pelvic inflammatory disease, and even menstruation, and it may be normal in early-stage or mucinous ovarian cancers. Its main clinical value is in postmenopausal women with a known ovarian mass (as part of risk-of-malignancy indices) and in monitoring treatment response and detecting recurrence after a diagnosis of ovarian cancer has been established. A normal level does not exclude malignancy, so imaging and histology remain essential. Imaging, particularly transvaginal ultrasound, remains the first-line investigation for a pelvic mass, not CA-125.

• A. A normal CA-125 does not exclude ovarian cancer, especially in early-stage or mucinous tumors.
• C. CA-125 elevation occurs in many benign conditions and is not diagnostic on its own.
• D. Imaging, not CA-125, is the first-line investigation for an adnexal mass.

A cytology result of HSIL carries a high risk of underlying cervical intraepithelial neoplasia grade 2 or 3 and warrants direct referral to colposcopy with biopsy of any visualized lesion, rather than repeat cytology, because the risk of missing significant disease with a 'wait and repeat' approach is unacceptably high. In contrast, ASC-US or LSIL results in women without other risk factors can often be managed with HPV co-testing or repeat cytology at an interval, reserving colposcopy for persistent or high-risk findings. Empirical topical therapy has no role in management of cervical dysplasia. Hysterectomy is reserved for selected cases of confirmed invasive carcinoma or recurrent high-grade disease, not as an initial step after an abnormal smear.

• A. Repeating cytology in a year risks missing significant high-grade disease; HSIL requires immediate colposcopic evaluation.
• C. Hysterectomy is not an initial step without histological confirmation of invasive disease.
• D. Imiquimod is used for genital warts, not cervical dysplasia, and has no established role here.

According to the WHO Medical Eligibility Criteria and major guidelines, the combination of age 35 years or older with current smoking is a contraindication (category 4, unacceptable risk) for combined hormonal contraceptives because estrogen increases the risk of venous and arterial thromboembolism, and this risk is markedly amplified by smoking-related vascular effects in older women. Progestin-only methods or non-hormonal options such as the copper IUD are safer alternatives in this situation. Reducing cigarette consumption does not eliminate the risk sufficiently to make combined contraceptives safe, and aspirin does not mitigate the estrogen-related thrombotic risk. This category is distinct from smoking alone in younger women, which is a lesser-risk category.

• B. Reducing cigarette intake does not remove the contraindication; any smoking combined with age 35+ is high risk.
• C. Aspirin does not counteract the estrogen-related thrombosis risk in this context.
• D. Smoking combined with age 35 or older significantly raises thromboembolic risk, making unrestricted use unsafe.

The levonorgestrel-releasing intrauterine system is the most appropriate choice for a woman with heavy menstrual bleeding and dysmenorrhea because it releases progestin locally, causing endometrial thinning that reduces menstrual blood loss by up to 90% and alleviates dysmenorrhea, in addition to providing long-acting contraception. The copper IUD, in contrast, is known to increase menstrual blood loss and cramping, making it a poor choice for this patient. Inert IUDs are largely obsolete and not recommended due to lower efficacy and higher expulsion rates. The subdermal implant is a reasonable contraceptive option but is not a long-acting intrauterine device and is less effective than the levonorgestrel IUS specifically for reducing heavy menstrual bleeding.

• A. The subdermal implant is not an intrauterine device and is not asked for here; it is also less targeted for reducing heavy menstrual bleeding.
• B. The copper IUD typically worsens menstrual bleeding and cramping, making it unsuitable for this presentation.
• C. Inert IUDs are outdated, with higher failure and expulsion rates compared to modern devices.

Shoulder dystocia is an obstetric emergency managed with a stepwise algorithm (e.g., HELPERR). After calling for help and stopping maternal pushing, the first-line maneuvers are McRoberts position (hyperflexion and abduction of maternal hips) combined with suprapubic pressure, which together resolve most cases by rotating the pelvis and dislodging the anterior shoulder from behind the symphysis pubis. These are simple, rapid, and low-risk, making them the appropriate first step before more invasive internal maneuvers. Episiotomy may be performed to allow access for internal maneuvers but is not itself a corrective maneuver.

• A. Fundal pressure increases the risk of further impaction and uterine rupture and is contraindicated in shoulder dystocia.
• B. Cesarean section is not possible once the fetal head has delivered; dystocia is managed with maneuvers to deliver the shoulder vaginally.
• D. Internal maneuvers such as delivery of the posterior arm are reserved for cases where McRoberts and suprapubic pressure fail.

Pregnancies that continue beyond 41 weeks are associated with increasing risk of stillbirth, meconium aspiration, and macrosomia-related complications. Major guidelines (ACOG, NICE, RCOG) recommend offering induction of labour between 41 and 42 weeks of gestation to reduce these risks, regardless of cervical favorability, using appropriate cervical ripening agents if the cervix is unfavorable. Expectant management beyond 42 weeks is not recommended due to a significant rise in perinatal mortality. Mode of delivery should be vaginal unless there is a specific obstetric indication for cesarean.

• A. Prolonged inpatient monitoring without active management does not reduce the risks associated with post-term pregnancy.
• B. There is no obstetric indication for cesarean section here; induction of labour is the recommended approach.
• C. Waiting a further two weeks would extend the pregnancy beyond 42 weeks, significantly increasing perinatal risk.

In preterm labour between 24 and 34 weeks gestation without contraindications, nifedipine (a calcium channel blocker) is a first-line tocolytic used to delay delivery for 48 hours, allowing time for antenatal corticosteroids to take effect. Betamethasone (or dexamethasone) given intramuscularly accelerates fetal lung surfactant production, reducing neonatal respiratory distress syndrome, intraventricular hemorrhage, and neonatal mortality. Magnesium sulfate is reserved for fetal neuroprotection when delivery is imminent before 32 weeks, not as a substitute for tocolysis or corticosteroids. Oxytocin promotes labour and is contraindicated in preterm labour when the goal is to delay delivery.

• A. Magnesium sulfate alone does not delay labour; tocolysis is still needed to allow corticosteroids time to act.
• B. Dexamethasone is used for fetal lung maturity, not maternal blood pressure control, and the option mischaracterizes its purpose.
• D. Oxytocin augments contractions and would worsen preterm labour; it is not used to delay delivery.

Preterm premature rupture of membranes (PPROM) before 34 weeks in the absence of infection, labour, or fetal compromise is managed expectantly with hospital admission, antenatal corticosteroids to promote fetal lung maturity, and prophylactic antibiotics (erythromycin, or amoxicillin as an alternative) to prolong the latency period and reduce the risk of chorioamnionitis and neonatal infection. Delivery is reserved for signs of infection, labour, fetal distress, or reaching a gestational age where expectant management is no longer beneficial, typically around 34-37 weeks. Immediate delivery in this stable patient would expose the fetus to unnecessary prematurity risk.

• A. Induction of labour is not indicated in a stable patient without infection or fetal distress at 30 weeks; expectant management is preferred.
• B. Discharge is inappropriate; PPROM requires inpatient monitoring for signs of infection, labour, or fetal compromise.
• D. There is no indication for emergency cesarean or broad-spectrum antibiotics in the absence of chorioamnionitis or fetal distress.

Postpartum endometritis is a clinical diagnosis based on fever, uterine tenderness, and foul-smelling lochia within the first week after delivery, often with tachycardia reflecting systemic infection. It results from ascending polymicrobial infection of the endometrial lining, more common after cesarean section but also occurring after vaginal delivery, especially with risk factors such as prolonged labour or manual placental removal. First-line treatment is intravenous clindamycin plus gentamicin, which covers the polymicrobial anaerobic and aerobic flora involved. Urinalysis being unremarkable and absence of wound involvement make the other diagnoses less likely.

• A. Retained products would not typically cause fever and foul discharge unless superimposed infection is present, which is the clinical picture of endometritis.
• C. There is no mention of a perineal wound or localized wound findings; the tenderness is uterine, not at an incision site.
• D. Urinalysis is unremarkable, making urinary tract infection unlikely as the cause of fever and abdominal pain.

This presentation is consistent with lactational mastitis, characterized by diffuse breast erythema, tenderness, and fever without a discrete fluctuant collection, most commonly caused by Staphylococcus aureus entering through cracked nipples. Management includes continued breastfeeding or milk expression from the affected breast to prevent milk stasis, combined with an oral antistaphylococcal antibiotic such as flucloxacillin. Stopping breastfeeding is unnecessary and can worsen milk stasis, increasing the risk of abscess formation. Needle aspiration or surgical drainage is reserved for a confirmed breast abscess with a fluctuant, palpable collection, which is not present here.

• A. Breastfeeding should continue during mastitis; stopping increases milk stasis and risk of abscess formation.
• B. There is no fluctuant mass to suggest an abscess, so aspiration is not indicated at this stage.
• C. Surgical drainage is reserved for abscesses that have failed aspiration or are large and multiloculated, not for diffuse mastitis without a collection.

Postpartum psychosis is a psychiatric emergency that typically presents within the first two to four weeks after delivery with rapid onset of hallucinations, delusions, disorganized thinking, and severe sleep disturbance, posing risk of harm to the mother or infant and requiring urgent psychiatric admission. Baby blues occurs within the first 2 weeks, is mild and self-limiting, and does not involve psychotic features. Postpartum depression typically develops over weeks to months and presents with persistent low mood, anhedonia, and fatigue without psychosis. The presence of hallucinations and paranoid delusions in this case points specifically to postpartum psychosis rather than a mood disorder alone.

• B. Postpartum depression presents with low mood and fatigue, not psychotic symptoms such as hallucinations and paranoia.
• C. Baby blues is mild, resolves within two weeks, and does not include hallucinations or delusions.
• D. Generalized anxiety disorder does not explain the hallucinations and disorganized speech described.