Psych CASC / OSCE · Addiction psychiatry — cannabis and psychosis
Explain cannabis and psychosis to parents — CASC communication station
MRCPsych/FRANZCP-style communication station: dual formulation, potency risk, parallel treatment, SIP conversion honesty, non-moralising cannabis counselling, vocational hope.
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Station brief
Format. Communication station, approximately 7–10 minutes active time after reading. You are the psychiatry registrar in the early intervention / dual-diagnosis clinic. [1]
Candidate instructions. Explain the working dual diagnosis (psychosis plus cannabis use), discuss what is known about high-THC risk, outline medical checks and treatment (medication and psychosocial cannabis help), address CBD myths, discuss university, and explain why follow-up matters even if symptoms improve after stopping. Check understanding. The examiner plays both parents. [1][2]
References4ShowHide
- [1]Di Forti M, Quattrone D, Freeman TP, et al. The contribution of cannabis use to variation in the incidence of psychotic disorder across Europe (EU-GEI): a multicentre case-control study Lancet Psychiatry, 2019.PMID 30902669
- [2]Starzer MSK, Nordentoft M, Hjorthøj C Rates and Predictors of Conversion to Schizophrenia or Bipolar Disorder Following Substance-Induced Psychosis Am J Psychiatry, 2018.PMID 29179576
- [3]Schoeler T, Petros N, Di Forti M, et al. Effects of continuation, frequency, and type of cannabis use on relapse in the first 2 years after onset of psychosis: an observational study Lancet Psychiatry, 2016.PMID 27567467
- [4]McGuire P, Robson P, Cubala WJ, et al. Cannabidiol (CBD) as an Adjunctive Therapy in Schizophrenia: A Multicenter Randomized Controlled Trial Am J Psychiatry, 2018.PMID 29241357