Psych CASC / OSCE · Public-community — disaster and mass casualty psychiatry
Evacuation centre survivor after bushfire — CASC communication station
MRCPsych/FRANZCP-style CASC: trauma-informed disaster assessment, Hobfoll/PFA framing, risk, and collaborative stepped plan.
On this page & tools
Target exams
Station brief
Format. Communication station, approximately 7–10 minutes active time after reading. You are the psychiatry registrar attached to the evacuation centre mental health team. Privacy is limited; negotiate a quieter corner. [4]
Candidate instructions. Build rapport. Assess suicide risk. Map exposure and current practical needs. Normalise early distress without dismissing severe symptoms. Explain PFA-style support and that not everyone needs specialist trauma therapy immediately. Do not force a full graphic narrative. Do not offer mandatory group debriefing as prevention. Agree a collaborative safety and follow-up plan. [1][2][3]
Candidate scenario
Your patient is 42, evacuated last night from a high-impact bushfire zone. Lost home; partner safe; neighbour deceased. Reports little sleep, jumpiness at sirens, tearfulness, and saying "I keep seeing the sky turn black — maybe I should not be here." No prior psychiatric admissions. Taking no regular medication. Sobbing but oriented. No acute medical emergency. Interpreter not required. [4]
Marking domains
- Introduces self/role; protects privacy as far as possible in a shelter
- Explicit suicide risk assessment (ideation, intent, plan, means, protective factors)
- Trauma-informed pacing; offers control and breaks; no forced graphic dump
- Exposure and loss enquiry including practical needs (housing, clothing, information)
- Explains normal early distress vs when further help is needed; names support without promising CISD cure
- Collaborative plan: safety tonight, centre supports, primary care/crisis follow-up, pathway if symptoms persist (skills help → trauma-focused therapy; medication discussion only if appropriate)
- Empathy, time management, non-pathologising language [1][3][4]
Reveal assessor key
Open. Introduce; explain role with the mental health team; negotiate quieter space; check who should be present. [4]
Risk. Passive/active ideation, intent, plan, means, protective people, substances, safety tonight in the shelter. [4]
Explore. "What has been hardest since the fire?" (paced). Losses, sleep, startle, alcohol, children/dependents. "What would help most today?" (information, reunification, quiet place, contact with GP). Promote safety, calm, connectedness, efficacy, hope in plain language. [1][3]
Plan. Safety plan; centre welfare supports; follow-up check; explain that many improve with support and time, while persistent nightmares/avoidance/depression warrant stepped specialist care. Do not mandate debriefing group. Medication (e.g. sertraline pathway) only if clinically indicated and preferred later — not a day-one sales pitch. [2][5]
Fails. Forcing graphic retelling; "everyone needs CISD today"; skipping risk; diagnosing lifelong PTSD in the first minutes; inventing legal sections; dismissing all distress as "just stress" without a follow-up plan. [2][4]
References
- [1]Hobfoll SE, Watson P, Bell CC, et al. Five essential elements of immediate and mid-term mass trauma intervention: empirical evidence Psychiatry, 2007.PMID 18181708
- [2]Rose S, Bisson J, Churchill R, Wessely S Psychological debriefing for preventing post traumatic stress disorder (PTSD) Cochrane Database Syst Rev, 2002.PMID 12076399
- [3]Forbes D, Lewis V, Varker T, et al. Psychological first aid following trauma: implementation and evaluation framework for high-risk organizations Psychiatry, 2011.PMID 21916629
- [4]North CS, Pfefferbaum B Mental health response to community disasters: a systematic review JAMA, 2013.PMID 23925621
- [5]Brady K, Pearlstein T, Asnis GM, Baker D, et al. Efficacy and safety of sertraline treatment of posttraumatic stress disorder: a randomized controlled trial JAMA, 2000.PMID 10770145