Mental Status Examination

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Appearance, Behavior, Speech (ABS) - The Grand Entrance

  • Appearance:
    • Build (emaciated, obese), posture (stooped, erect).
    • Clothing (appropriate, dishevelled, eccentric), grooming & hygiene (kempt/unkempt).
    • Distinctive features: scars, tattoos, pallor, resting tremors.
  • Behavior (Psychomotor Activity):
    • Mannerisms, gestures, tics, stereotypies.
    • Activity level: psychomotor agitation (↑) or retardation (↓).
    • Eye contact (good, poor, staring), rapport, attitude.
  • Speech:
    • Rate (pressured/slow), rhythm (monotonous), volume (loud/soft).
    • Quantity (talkative, poverty of speech/alogia), tone (anxious, flat).
    • Clarity (clear, slurred).

⭐ Poverty of speech (alogia) is a negative symptom of schizophrenia, while pressure of speech is common in mania.

Mood & Affect - Emotion Commotion

  • Mood: Patient's subjective, sustained emotional experience.
    • Reported: e.g., "I feel depressed," "anxious."
    • Types: Euthymic (normal), dysphoric (low, irritable), euphoric (elevated), expansive.
  • Affect: Examiner's objective observation of emotional expression.
    • Key aspects:
      • Quality: Type of emotion (e.g., sad, angry).
      • Range/Intensity: (see flowchart).
      • Appropriateness: To thought content.
      • Congruence: With stated mood.

⭐ A 'blunted' affect refers to a significant reduction in the intensity of emotional expression, while a 'flat' affect indicates virtually no emotional expression.

Thought: Process & Content - Mind Maze

  • Process (Form & Stream): How thoughts connect.
    • Normal: Logical, goal-directed.
    • Abnormalities:
      • Flight of ideas: Rapid speech, abrupt topic shifts (mania).
      • Loosening of associations: Disconnected ideas.
      • Tangentiality: Never reaches point.
      • Circumstantiality: Excessive detail, eventually reaches point.
      • Thought blocking: Sudden stop.
      • Perseveration: Repetition.
      • Neologisms: New words.
      • Word salad: Incoherent.
  • Content: What patient thinks.
    • Delusions: Fixed, false beliefs (e.g., persecutory, grandiose).
    • Obsessions: Intrusive thoughts.
    • Compulsions: Repetitive acts.
    • Phobias: Irrational fears.
    • Suicidal/homicidal ideas.

⭐ Flight of ideas, characterized by rapid, continuous speech with abrupt changes from one topic to another, is a hallmark of mania.

Perception & Cognition Pt.1 - Reality Radar & Focus Filter

  • Perception (Reality Radar): How stimuli are experienced.
    • Hallucinations: False sensory perception without external stimuli.
      • Types: Auditory, visual, olfactory, gustatory, tactile (formication).
      • Hypnagogic (pre-sleep) & Hypnopompic (post-sleep) are normal.
    • Illusions: Misinterpretation of real external stimuli.
    • Depersonalization/Derealization: Feeling detached from self/world being unreal.
  • Cognition (Focus Filter - Basics):
    • Orientation: To Time, Place, Person (TPP).
      • Typically lost: Time → Place → Person.
    • Attention & Concentration: Ability to focus & sustain mental effort.
      • Tests: Digit span (Forward 5-7; Backward 4-6), serial 7s/3s.

⭐ Auditory hallucinations, particularly voices commenting or conversing (e.g., third-person auditory hallucinations), are highly suggestive of schizophrenia.

Cognition Pt.2, Insight & Judgment - Brain Bureau & Wise Choices

  • Cognition Pt.2:
    • Memory:
      • Immediate: Digit Span (Fwd 5-7, Bwd 4-6).
      • Recent: Recall 3 objects @ 5 min.
      • Remote: Verifiable past events.
    • Abstract Thinking: Proverbs, Similarities/Differences.
  • Insight: Patient's awareness of illness. Graded 1 (complete denial) to 6 (true emotional insight).

    ⭐ Anosognosia, or lack of insight into one's illness, is common in severe mental illnesses like schizophrenia and bipolar disorder, and is often associated with poor treatment adherence.

  • Judgment: Decision-making capacity. Assessed via social scenarios (e.g., "found envelope").

High‑Yield Points - ⚡ Biggest Takeaways

  • MSE (ASEPTIC): Appearance, Speech, Emotion, Perception, Thought, Insight, Cognition.
  • Mood is subjective (patient's report); Affect is objective (observed emotion).
  • Thought Form: Flight of ideas, tangentiality, loosening of associations, thought block.
  • Thought Content: Delusions (fixed false beliefs), obsessions, suicidal/homicidal ideation.
  • Perception: Hallucinations (no external stimuli) vs. Illusions (misinterpretation of real stimuli).
  • Insight: Patient's awareness & understanding of illness; often graded.
  • Cognition: Assess orientation, attention, memory, abstract thinking, judgment.

Practice Questions: Mental Status Examination

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Flashcards: Mental Status Examination

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What mental apparatus is the executive part of the mind that maintains the balance between id and superego?_____

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What mental apparatus is the executive part of the mind that maintains the balance between id and superego?_____

Ego (reality principle)

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