Psychiatry Rotation Preparation

Your psychiatry rotation is a unique opportunity to move beyond pure pathophysiology and engage with the profound interplay of biology, psychology, and social context that defines mental health. Success here hinges less on memorizing facts and more on mastering a distinct set of clinical skills: building therapeutic rapport, conducting a structured assessment, and formulating a coherent, person-centered treatment plan. This guide will equip you with the foundational knowledge and practical approach needed to excel in your clerkship and provide meaningful care to patients.

The Psychiatric Interview: Building the Therapeutic Alliance

The psychiatric interview is your primary diagnostic and therapeutic tool. Unlike a standard history, its goal is to elicit a psychiatric history while establishing a therapeutic alliance—a collaborative, trusting relationship between you and the patient. Begin with open-ended questions like, "What brings you in today?" and allow the narrative to unfold. Actively listen, observe nonverbal cues, and practice reflective listening by paraphrasing the patient’s words to confirm understanding. A crucial skill is balancing empathy with the need to gather specific data. You must ask about sensitive topics (trauma, substance use, suicidal thoughts) with direct, non-judgmental language. For example, instead of "You don’t have thoughts of hurting yourself, do you?" ask, "Many people going through similar pain have thoughts of suicide. Have you had any such thoughts?"

The Mental Status Examination: The Objective Snapshot

While the interview reveals the patient’s story, the Mental Status Examination (MSE) is your cross-sectional, objective assessment of their cognitive and emotional state at that moment. It is analogous to the physical exam in other specialties. You conduct it through observation and specific questions throughout the encounter. Document your findings systematically:

• Appearance: Grooming, eye contact, psychomotor activity (e.g., agitated or slowed).
• Speech: Rate, rhythm, volume, and quantity (e.g., pressured, monotone).
• Mood: The patient’s self-reported emotional state (e.g., "I feel sad").
• Affect: The observed emotional expression (e.g., congruent, blunted, labile).
• Thought Process: The logic and flow of ideas (e.g., linear, tangential, flight of ideas).
• Thought Content: What the patient is thinking about (e.g., preoccupations, delusions—fixed false beliefs, hallucinations—perceptions without an external stimulus).
• Perception: Any abnormalities, primarily hallucinations in any sensory modality.
• Cognition: A screening of orientation, memory, and concentration.
• Insight: The patient’s understanding that they are ill.
• Judgment: The ability to make sound decisions, often assessed by asking about hypothetical scenarios.

Risk Assessment: Suicidality and Homicidality

This is the most critical skill you will learn. You must directly assess for suicidality (risk of suicide) and homicidality (risk of harm to others) with every patient. If a patient endorses suicidal ideation, you must evaluate the plan, intent, means, and access to means. A patient with a specific plan, strong intent, and access to a lethal means (e.g., a firearm) requires immediate emergency intervention. Use the SAD PERSONS scale or similar tools as a mnemonic, but your clinical judgment is paramount. For homicidality, assess the target, plan, intent, and means. You have a duty to warn a specific, identifiable victim, as established by the Tarasoff ruling. Document your risk assessment thoroughly, including the rationale for your safety plan.

Biopsychosocial Formulation and Major Disorders

Your final task is to synthesize all data into a biopsychosocial formulation. This concise paragraph explains why this person developed this disorder at this time. It integrates biological (genetics, neurochemistry), psychological (personality, coping skills), and social (stressors, support system) factors. This formulation directly informs treatment.

You will encounter several major diagnostic categories. Focus on their core features, diagnosis, and acute management:

• Major Depressive Disorder: Requires ≥2 weeks of depressed mood or anhedonia, plus associated symptoms (sleep changes, guilt, energy loss, concentration problems, appetite changes, psychomotor changes, suicidal thoughts). Rule out medical causes and bipolar disorder. Treatment involves psychotherapy and SSRIs/SNRIs.
• Bipolar Disorder: Characterized by episodic mood dysregulation. Bipolar I requires at least one manic episode (distinct period of abnormally elevated/irritable mood + increased activity for ≥1 week). Bipolar II involves hypomania and major depression. Mood stabilizers (e.g., lithium, valproate) are first-line.
• Schizophrenia Spectrum Disorders: A psychotic disorder with ≥6 months of functional decline. Look for the triad of positive symptoms (hallucinations, often auditory; delusions; disorganized speech/behavior), negative symptoms (blunted affect, avolition, alogia), and cognitive impairment. Antipsychotics (e.g., risperidone, olanzapine) are the cornerstone of treatment.
• Anxiety Disorders: Include generalized anxiety, panic disorder, and social anxiety. Key features are excessive, uncontrollable worry and avoidance behaviors. First-line treatment is often SSRIs/SNRIs and cognitive-behavioral therapy (CBT). Benzodiazepines (e.g., lorazepam) are used cautiously for acute panic due to risk of dependence.
• Substance Use Disorders: Diagnosed by a pattern of use leading to clinically significant impairment (failure to fulfill roles, use in hazardous situations, legal problems, continued use despite social problems). Assess for intoxication and withdrawal syndromes, which can be life-threatening (e.g., alcohol, benzodiazepine withdrawal).

Psychopharmacology Basics

Understand the mechanism, primary use, and key side effects for major drug classes.

1. Antidepressants (SSRIs/SNRIs): First-line for depression/anxiety. Side effects: GI upset, sexual dysfunction, activation (start low, go slow). SNRIs (venlafaxine, duloxetine) can increase blood pressure.
2. Antipsychotics: Treat psychosis, mania, and agitation. First-generation (haloperidol) carry high risk of extrapyramidal symptoms (EPS) like dystonia and tardive dyskinesia. Second-generation (risperidone, olanzapine) have higher metabolic risk (weight gain, diabetes, dyslipidemia) but lower EPS risk.
3. Mood Stabilizers: Lithium is gold standard for bipolar disorder; monitor levels and watch for renal/thyroid toxicity. Valproate is also common; monitor LFTs and platelets.
4. Benzodiazepines (lorazepam, clonazepam): For acute anxiety/agitation. Risk: sedation, respiratory depression, tolerance, dependence. Not for long-term first-line management of anxiety disorders.

Common Pitfalls

1. Avoiding Direct Questions About Risk: Failing to ask clearly about suicide or homicide for fear of "putting ideas in their head." This is a dangerous myth. Direct questioning is essential for assessment and often provides relief to the patient.
2. Confusing Mood and Affect: Documenting them as the same thing. Mood is subjective ("I feel sad"); affect is objective (you observe a tearful, downcast face). A patient with a flat affect who reports a "fine" mood is displaying a discrepancy that is diagnostically significant.
3. Over-relying on Pharmacology: Seeing medication as the only intervention. For most disorders, combined psychotherapy and pharmacotherapy is more effective than either alone. Always consider the psychosocial interventions a patient needs.
4. Missing the Medical Mimics: Assuming a psychiatric symptom is purely psychiatric. Agitation can be from hyperthyroidism, hallucinations from a brain tumor, and depression from hypothyroidism. A thorough medical history and review of systems is non-negotiable.

Summary

• The psychiatric interview and Mental Status Examination (MSE) are your core clinical skills; practice them deliberately to build rapport and gather objective data.
• Risk assessment for suicidality and homicidality is your highest-priority task; be direct, thorough, and document your safety decision-making clearly.
• Synthesize your findings into a biopsychosocial formulation to understand the whole person and guide treatment.
• Know the core features, diagnostic criteria, and first-line treatments for major depressive disorder, bipolar disorder, schizophrenia, anxiety disorders, and substance use disorders.
• Understand the basic use and key side effects of major psychopharmacology classes: antidepressants, antipsychotics, mood stabilizers, and benzodiazepines.