Psychiatry
Clinical Assessment and the Mental State Examination
Clinical assessment in psychiatry for MBBS and NEET-PG: history taking, mental state examination, delusions and hallucinations, insight, risk and investigations, mapped to NMC codes PS3.
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Clinical Assessment and the Mental State Examination
Clinical assessment in psychiatry for MBBS and NEET-PG: history taking, mental state examination, delusions and hallucinations, insight, risk and investigations, mapped to NMC codes PS3.
This chapter teaches the clinical method of psychiatry: taking a full history, performing and recording the mental state examination, and building rapport while assessing risk. It also covers communication skills, confidentiality, breaking bad news and the investigations used to exclude organic disease.
High-yield: Clinical Assessment and the Mental State Examination
- The psychiatric assessment is a structured history followed by the mental state examination, which describes the patient's state at the time of interview.
- The mental state examination is recorded under appearance and behaviour, speech, mood and affect, thought, perception, cognition, insight and judgement.
- Mood is the sustained emotional state reported by the patient, while affect is the moment-to-moment emotional expression observed by the examiner.
- Thought is assessed for form, such as flight of ideas or loosening of associations, and for content, such as delusions and obsessions.
- A delusion is a fixed, false belief held against evidence and out of keeping with the person's culture.
- A hallucination is a perception without an external stimulus, whereas an illusion is a misperception of a real stimulus.
- Cognition is screened with orientation to time, place and person, attention, memory and simple tests such as serial sevens.
- Insight is the patient's awareness of being ill and need for treatment, and it strongly influences adherence.
- Establishing rapport and empathy at the start improves the accuracy and completeness of the history.
- Confidentiality is central to psychiatric practice and may be overridden only when there is a serious risk of harm.
- Breaking bad news is best done in a private setting, at the patient's pace, with clear language and support.
- A risk assessment for suicide, self-harm and harm to others is a compulsory part of every psychiatric interview.
- Common investigations exclude organic causes and include thyroid function, blood glucose, electrolytes, imaging and, where relevant, drug screening.
- Referral to a specialist is indicated for diagnostic uncertainty, treatment resistance, high risk or the need for admission.
Mental state examination structure
- **Appearance, behaviour, speech:** Grooming, motor activity, eye contact; rate, volume and flow of speech.
- **Mood and affect:** Mood is the reported sustained emotion; affect is the observed, moment-to-moment expression.
- **Thought and perception:** Form and content of thought, delusions, and hallucinations versus illusions.
- **Cognition and insight:** Orientation, attention, memory; awareness of illness and judgement.
NMC competencies in this chapter
- **PS3.1:** Eliciting, presenting and documenting a psychiatric history
- **PS3.2:** Establishing rapport and empathy with patients
- **PS3.3:** Biological, psychological and social factors in illness
- **PS3.4:** Common organic psychiatric disorders
- **PS3.5:** Essential investigations in psychiatric patients
- **PS3.7:** Components of communication and breaking bad news
- **PS3.9:** Confidentiality in clinical practice
- **PS3.11:** Distinguishing psychotic and non-psychotic disorders
Frequently Asked Questions
What is the difference between mood and affect?
Mood is the sustained emotional state the patient describes, such as feeling low for weeks, while affect is the moment-to-moment emotional expression the examiner observes during the interview.
How is a delusion different from a hallucination?
A delusion is a fixed false belief held against evidence, while a hallucination is a perception experienced without any external stimulus. Both are core signs assessed in the mental state examination.
Why is insight important?
Insight is the patient's awareness of being ill and of needing treatment. Poor insight predicts non-adherence and relapse, so it is always recorded and addressed in the management plan.
When is confidentiality overridden?
Confidentiality is central to psychiatry but may be breached when there is a serious and specific risk of harm to the patient or to others, following a careful clinical and ethical judgement.
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