General patient management strategy
The physician's primary task upon suspecting infectious mononucleosis is to determine the place of treatment. Hospitalization in an infectious diseases unit is indicated for diagnosis verification, dynamic monitoring, and therapy, especially in moderate and severe cases (e.g., risk of splenic capsule rupture or pronounced hepatitis).
Mandatory organizational steps include:
- Prescribing strict bed rest for the entire acute period.
- Selecting pathogenetic and symptomatic treatment based on the severity of the condition.
- Determining indications for antibiotic therapy.
- Establishing timelines for serological follow-up, discharge, and subsequent dispensary monitoring of the convalescent.
Pharmacotherapy
Specific antiviral therapy is not described in routine practice; the focus is on managing leading syndromes.
In the presence of lacunar tonsillitis (when catarrhal tonsillitis transforms into lacunar-necrotic with plaque that is difficult to remove), the following are indicated:
- Antibacterial therapy. Macrolides are used, while penicillin-class antibiotics and aminopenicillins are strictly excluded.
- Nonsteroidal anti-inflammatory drugs (NSAIDs) to manage prolonged febrile fever and intoxication syndrome.
- Desensitizing therapy to reduce the body's allergic sensitization.
The issue of "ampicillin rash"
A frequent diagnostic and therapeutic error is self-medication or erroneous prescription of ampicillin (or Flemoxin) in the early stages when mononucleosis is mistaken for ARVI or catarrhal tonsillitis.
The use of aminopenicillins leads to severe immune-complex pathology. Due to polyclonal activation of B lymphocytes by Epstein-Barr virus superantigens, heterophile antibodies to the drug are produced.
Clinically, at the peak of the disease, this manifests as an abundant, large, pruritic maculopapular rash prone to confluence. The condition is accompanied by facial puffiness and eyelid pastosity, which emergency teams often mistakenly assess as allergic angioedema.
Rationale for therapy: clinical and laboratory monitoring
To avoid treating mononucleosis like viral hepatitis A (due to jaundice and cytolysis) or purulent lymphadenitis (due to lymph node hyperplasia without fluctuation), confirmation of the diagnosis is required prior to initiating therapy.
The examination plan includes:
- Complete blood count (CBC): looking for pronounced leukocytosis, absolute lymphomonocytosis, and atypical mononuclear cells (cells with a broad, light, basophilic cytoplasm).
- Blood biochemistry: assessment of ALT, AST (cytolytic syndrome), bilirubin, and lactate dehydrogenase (LDH).
- Serology and ELISA: Paul-Bunnell test, detection of anti-VCA-IgM and anti-EA IgG.
- PCR diagnostics: detection of EBV DNA in blood and saliva.
- Bacteriological examination: throat swab to mandatory rule out diphtheria.
Briefly: answers to topical questions
What infectious and noninfectious diseases must be differentiated from mononucleosis?
Differential diagnosis of infectious mononucleosis must be performed with a wide range of diseases depending on the leading clinical syndromes.
- Infectious pathologies — influenza, adenovirus infection and other ARVI, measles, rubella, scarlet fever, pseudotuberculosis, bacterial tonsillitis, oropharyngeal diphtheria, viral hepatitis, acute HIV infection, yersiniosis, and leptospirosis.
- Noninfectious diseases — toxic-allergic dermatitis (in case of exanthema), as well as lymphoproliferative disorders (e.g., Hodgkin's lymphoma) in cases of pronounced and persistent generalized lymphadenopathy and splenomegaly.
What are the complete clinical and epidemiological indications for hospitalization of patients with infectious mononucleosis?
Hospitalization of patients with infectious mononucleosis is carried out primarily on clinical indications. Referral to an infectious diseases hospital is required for moderate and severe forms of the disease, as well as for diagnosis verification, observation, and treatment. Outpatient treatment is permissible for mild forms. Complete epidemiological indications for hospitalization for this infection are not detailed in the sources.
What are the timelines and rules for dispensary monitoring of convalescents after infectious mononucleosis?
Dispensary monitoring of convalescents after infectious mononucleosis lasts for 6 months.
The follow-up schedule is conducted at 1, 3, and 6 months and includes:
- complete blood count (CBC);
- blood biochemistry (monitoring ALT and AST activity);
- serological screening for HIV infection.
Convalescents with persistent lymphadenopathy and blood count abnormalities must be consulted by a hematologist. In addition, patients require a protective regimen: strict limitation of physical activity for up to 3 months due to the risk of splenic capsule rupture.
Class and exam questions
What are the indications for antibacterial therapy in this disease?
Antibiotics (excluding the penicillin series) are prescribed when bacterial complications join, particularly with the development of lacunar tonsillitis with whitish-yellow plaque on the tonsils.
What are respiratory disorders in mononucleosis frequently confused with?
Respiratory difficulty and a nasal voice are often mistaken for laryngeal stenosis or allergic angioedema. In fact, they are caused by pronounced adenoiditis (hypertrophy of the pharyngeal tonsil) and nasal congestion.
What else to study on this topic
- Differential diagnosis with oropharyngeal diphtheria
- Differential diagnosis with viral hepatitis (A, B, C) in the icteric form
- Diagnostic errors: why IM is mistaken for purulent lymphadenitis
- Specific EBV markers: interpretation of anti-VCA IgM and anti-EA IgG
- Splenic capsule rupture as a life-threatening complication
Master the complete topic in the «Infectious Diseases» course
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- Complete study guide on "Treatment of infectious mononucleosis" and 3,312 more subject pages
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Other topics in the "Respiratory Infections" section
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