Psych CASC / OSCE · Old age psychiatry — dementia neuropsychiatry
Explain BPSD management and antipsychotic risks to a family carer — CASC station
MRCPsych/FRANZCP-style communication station: explain BPSD, non-drug first approach, pain assessment, limited role of antipsychotics including mortality and stroke risk, and shared decision-making about a short trial versus environmental care.
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Target exams
Station brief
Format. Communication station, approximately 7–10 minutes after reading time. You are the psychiatry registrar reviewing the man in residential care. The examiner plays the daughter. [1]
Candidate instructions. Explain what BPSD means in plain language, why behaviour often flares, your plan to look for pain and other medical triggers, the priority of non-drug care, and a balanced discussion of a short low-dose antipsychotic only if risk remains high — including death and stroke risks — and a review/stop plan. Check understanding and invite questions. [1][2]
Candidate scenario
Father has moderate Alzheimer disease. One episode of striking during a rushed shower; nights are restless. No clear delirium work-up yet. Osteoarthritis is known. Staff want long-term risperidone "to keep everyone safe." Daughter fears he will be "drugged into a zombie" and also fears staff will refuse care. [1]
Marking domains
- Empathy and agenda-setting (safety of father and staff; daughter's guilt/fear)
- Clear explanation of BPSD as symptoms with triggers, not wilful violence
- Medical/pain and environment plan first
- Honest antipsychotic risk–benefit (mortality, stroke, sedation, falls)
- Shared decision, review date, deprescribing intent
- Checks understanding / teach-back [1][2]
Reveal assessor key
Open. Acknowledge how frightening the hit and the "long-term sedative" suggestion are. Agenda: safety, causes, non-drug plan, medicines only if needed. [1]
Explain BPSD. Behavioural and psychological symptoms of dementia are common. They are usually driven by brain changes plus triggers — pain, constipation, infection, fear during personal care, noise, unfamiliar approach — not simple "naughtiness." [1]
Plan without rushing to drugs. We will map what happens at shower time, check for pain (arthritis), constipation, urine infection and delirium features, and change the care approach (warmth, two staff, slow steps, music). Treating pain can reduce behavioural disturbance. Carer/staff skills matter. [3][4]
Medicines. If he remains at high risk of harm after those steps, a short trial of a very low-dose antipsychotic (e.g. risperidone starting around 0.25–0.5 mg) might be considered for severe aggression/psychosis — not for wandering or mild irritability. Benefits are modest. Important harms: higher risk of death and stroke/cerebrovascular events, plus sleepiness and falls. This would not be a lifelong automatic tablet; we review soon and aim to stop when safe. [2][5]
Close. Summarise, check teach-back, offer written information, crisis contacts for staff injury/escalation, and a review date. Invite questions about consent/substitute decision-making. [1]
References
- [1]Kales HC, Gitlin LN, Lyketsos CG Assessment and management of behavioral and psychological symptoms of dementia BMJ, 2015.PMID 25731881
- [2]Schneider LS, Dagerman KS, Insel P Risk of death with atypical antipsychotic drug treatment for dementia: meta-analysis of randomized placebo-controlled trials JAMA, 2005.PMID 16234500
- [3]Husebo BS, Ballard C, Sandvik R, et al. Efficacy of treating pain to reduce behavioural disturbances in residents of nursing homes with dementia: cluster randomised clinical trial BMJ, 2011.PMID 21765198
- [4]Brodaty H, Arasaratnam C Meta-analysis of nonpharmacological interventions for neuropsychiatric symptoms of dementia Am J Psychiatry, 2012.PMID 22952073
- [5]Wooltorton E Risperidone (Risperdal): increased rate of cerebrovascular events in dementia trials CMAJ, 2002.PMID 12451085