The significance of the medical history in clinical practice
The medical history accounts for up to 50% of success in the diagnostic search. Despite the broad capabilities of instrumental and laboratory methods, it is the conversation with the patient that sets the direction for further examination. Without understanding the nature of complaints, it is impossible to rationally choose a visualization method: for pain in the right hypochondrium, the logical first step is abdominal ultrasound, rather than radiography.
Only the patient themselves can describe the duration, character, and provoking factors of pain—data that cannot be obtained from any machine. Furthermore, during the initial examination, the physician differentiates between subjective sensations and objective signs: for example, distinguishing true dyspnea of organic origin (difficulty inhaling or exhaling, forced body position) from rapid breathing associated with an anxiety disorder.
Golden rules of communication
- Listen and hear. The patient is the primary source of information about their own sensations.
- Adapt the communication style to the interlocutor, avoiding a condescending ("top-down") attitude.
- Maintain confidentiality: the conversation should be conducted one-on-one, especially when discussing past infections (e.g., serologically confirmed syphilis in the history) or other sensitive data.
- Simplify terminology: replacing "tachycardia" with "rapid heartbeat", "dyspnea" with "shortness of breath".
- Ask open-ended questions without suggesting symptoms. Instead of "do you feel nauseated after eating?" — "what do you feel after meals?".
Structure of history taking
Patient interviewing is structured sequentially and includes several mandatory sections.
- Complaints. Divided into chief (for which the patient sought care) and additional (accompanying, related to other organs and systems).
- Anamnesis morbi (history of present illness). When and how it started, how it progressed, what treatments were used, what brought relief, and the effectiveness of therapy.
- Anamnesis vitae (past medical history / personal history). Living conditions, occupational hazards, past illnesses, surgeries, injuries, bad habits.
- Family (hereditary) history. Diseases of close relatives, which is important when hereditary pathology is suspected.
- Allergological history. Must be clarified first, before prescribing any medications.
Detailing complaints
Each complaint requires clarification. In the case of pain syndrome, the following are determined: localization, radiation, character (pressing, stabbing, burning), duration, intensity, provoking and relieving factors, relation to physical exertion, food intake, and body position. For example, pressing substernal pain lasting 5–20 minutes, provoked by exertion and relieved by rest, has a fundamentally different clinical significance than short-term stabbing pain.
The anamnesis vitae section is variable and depends on the specialty: in bronchial asthma, the emphasis is placed on occupational and environmental factors; in gynecological pathology, on menstrual and reproductive function; in cardiology, on cardiovascular risk factors.
Creating a trusting atmosphere
The effectiveness of the interview depends on two components — the physical environment and communication. The office should be bright, in calm pastel tones. In communication, a confident tone, eye contact, empathy, and a demonstration of competence are important. Empathy does not mean comforting — it is the acknowledgment of the significance of the patient's problem, even if it is not life-threatening (for example, chronic headache impairs the quality of life and deserves the physician's attention).
Preparation for the interview includes studying medical documentation in advance: discharge summaries, electronic medical records, and results of previous examinations. This allows for asking clarifying rather than primary questions.
Questioning technique and concluding the conversation
Open-ended questions ("What is bothering you?", "Tell me how you are feeling", "How did things come to this?") give the patient the freedom to describe their condition without suggesting symptoms. If the patient deviates from the topic, the physician gently guides the conversation back to the main complaint, periodically summarizing what has been heard.
After taking the medical history, it is necessary to:
- Summarize what was heard and outline the presumptive condition.
- Justify the examination plan and referral to subspecialists if necessary.
- Discuss treatment, including lifestyle modification.
- Manage expectations: clearly explain what is achievable in chronic diseases (arterial hypertension, migraine, allergy) — symptom control, prolongation of remission, prevention of complications.
- Explain the drug administration regimen verbally, not just in writing, and verify understanding with clarifying questions.
- Specify the follow-up visit timeline and signs requiring emergency care.
Key points
- The medical history provides about 50% of diagnostic information and determines the examination strategy.
- Interview structure: complaints → anamnesis morbi → anamnesis vitae → family and allergological history.
- Complaints are divided into chief and additional; each requires detailing by localization, character, duration, and provoking factors.
- Allergological history must be collected for every patient regardless of the clinical specialty.
- Open-ended questions are preferable to closed-ended ones as they do not suggest symptoms.
- Terminology should be simplified to the patient's everyday language.
- A trusting atmosphere is formed by the physical environment, empathy, eye contact, and a confident tone.
- Concluding the conversation includes summarizing, justifying the plan, managing expectations, and checking understanding of prescriptions.