Psych CASC / OSCE · Consultation-liaison psychiatry
Explaining steroid psychosis and thyroid screening in medical illness — CASC communication station
MRCPsych/FRANZCP-style station: explain steroid-induced neuropsychiatric effects, avoid premature bipolar labelling, outline safety and steroid liaison, and link thyroid disease to anxiety-like presentations.
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Target exams
Station brief
Format. Communication station, approximately 7–10 minutes after reading time. You are the psychiatry registrar on the medical/oncology ward. The partner is present and distressed.[1][4]
Candidate instructions. Explain that high-dose steroids can cause insomnia, mood change, and psychosis without meaning the patient has lifelong bipolar disorder. Outline a plan: medical liaison about steroid dose, safety, short-term medicine only if needed, daily review. Address past “anxiety attacks” as possibly thyroid-related and the value of thyroid testing in such presentations. Avoid defensive jargon; check understanding; agree shared next steps with the medical team.[1][2][3]
Candidate scenario
Partner: “They say he is mad because of cancer drugs. Are you diagnosing bipolar? Will he be sectioned? He always had panic — was that his thyroid all along? Nurses want strong sedatives four times a day.” Patient looks frightened, sleep-deprived, mildly grandiose but redirectable.[1][3]
Marking domains
- Empathy and non-stigmatising explanation
- Accurate steroid neuropsychiatry teaching (dose/time link; spectrum of effects)
- Avoid premature lifelong bipolar diagnosis
- Clear plan: liaison for steroid reduction if safe, safety, short-term low-dose antipsychotic only if danger, review
- Thyroid–anxiety literacy without overclaiming every past panic was Graves
- Collaborative plan with medical team; check-back [1][2][3][4]
Reveal assessor key
Open. Acknowledge fear of “madness” and of forced treatment. “Steroids can temporarily change sleep, mood, and thinking — this is a recognised medical effect, not a moral failure.” [1][2]
Steroid mechanism, plain language. High-dose dexamethasone, especially early after starting or increasing, can cause insomnia, irritability, mania-like states, or paranoia. In cancer settings this is well described.[1][4]
Diagnosis humility. “We do not automatically label this lifelong bipolar from one steroid-related episode. We treat the cause, keep him safe, and reassess when the steroid effect settles.” [2]
Plan. Speak with oncology/medical team about the lowest effective steroid dose; quiet environment and sleep support; use the lowest effective short-term antipsychotic only if he is unsafe or highly distressed, with daily review — not automatic high-dose standing sedation.[2][4]
Thyroid angle. “Overactive thyroid can look like anxiety or panic — racing heart, restlessness, irritability. Checking thyroid blood tests is standard when those symptoms appear; his treated Graves history makes that lesson personal. Significant hyperthyroidism has also been linked in register research to later mood problems, so follow-up matters.” [3][5]
Close. Summarise plan, invite questions, agree how to contact the team if paranoia or insomnia worsens, and document capacity-relevant observations without threatening detention unless legal criteria and risk require it under local law.[1][2][3]
References
- [1]Warrington TP, Bostwick JM Psychiatric adverse effects of corticosteroids Mayo Clin Proc, 2006.PMID 17036562
- [2]Dubovsky AN, Arvikar S, Stern TA, et al. The neuropsychiatric complications of glucocorticoid use: steroid psychosis revisited Psychosomatics, 2012.PMID 22424158
- [3]Feldman AZ, Shrestha RT, Hennessey JV Neuropsychiatric manifestations of thyroid disease Endocrinol Metab Clin North Am, 2013.PMID 24011880
- [4]Ismail MF, Lavelle C, Cassidy EM Steroid-induced mental disorders in cancer patients: a systematic review Future Oncol, 2017.PMID 29186986
- [5]Thomsen AF, Kvist TK, Andersen PK, et al. Increased risk of affective disorder following hospitalisation with hyperthyroidism - a register-based study Eur J Endocrinol, 2005.PMID 15817908