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Clinical Atlas Prestige · Evidence-first

Psych CASC / OSCEChild and adolescent psychiatry — eating disorders

Psych CASC / OSCE · Child and adolescent psychiatry — eating disorders

Explain FBT and medical risk to parents of a teen with AN — CASC communication station

MRCPsych/FRANZCP-style communication station: FBT psychoeducation, medical risk, refeeding concern, SSRI boundaries, collaborative legal framing without jargon overload.

communication
On this page & tools

Target exams

FRANZCPMRCPsychABPNMD-DNB

Target exams

FRANZCPMRCPsychABPNMD-DNB
Prompt
Parents of a 14-year-old recently diagnosed with anorexia nervosa want a plain-language explanation of the diagnosis, why hospital might be needed if vitals worsen, what family-based treatment involves (especially Phase 1), why fluoxetine is not the main treatment for AN weight restoration, and how capacity/consent works if she refuses food when medically unstable.

Station brief

Format. Communication station, approximately 7–10 minutes active time after reading. You are the psychiatry registrar in the paediatric–psychiatry eating disorders clinic. [4]

Candidate instructions. Explain AN and medical risk to the parents, outline FBT Phase 1, address guilt, explain why fluoxetine is not the primary AN weight treatment, safety-net red flags for emergency care, and check understanding. The examiner plays a parent. [1][2][4]

Candidate scenario

Your patient is medically borderline-stable for outpatient care today but has had progressive weight loss and bradycardia in the 40s previously. You plan FBT with weekly reviews and clear medical admission thresholds. Parents ask whether a “diet pill antidepressant” will fix it and whether they caused the illness by “being too strict.” [1][3][4]

Marking domains

  • Empathy, structure, agenda-setting (including parental guilt)
  • Accurate plain-language model of AN as illness (externalisation)
  • Clear medical risk red flags and when to present to ED
  • FBT Phase 1 explanation (parents in charge of refeeding; not blame)
  • Medication boundaries: fluoxetine not for AN weight restoration/relapse prevention based on evidence
  • Consent/capacity principles for minors in plain language
  • Teach-back and written plan / crisis contacts [1][2][3][4]
Reveal assessor key

Open. Name role and time; ask priorities (guilt, medication, hospital fear). [4]

Explain AN. “Anorexia is a serious illness where the brain’s fear of weight gain and food rules take over, so the body is starved. It is not a lifestyle choice and not simply bad parenting.” Externalise: “We treat the anorexia as the problem, not your daughter as the problem.” [4][5]

Medical risk. Low heart rate, dizziness on standing, fainting, chest pain, sudden weakness, or inability to eat/drink safely means urgent hospital assessment. Weight alone can mislead. We monitor heart rate, bloods and ECG because the heart and salts can be dangerous during starvation and when restarting food.[2]

FBT. Best-evidenced family approach for teens: in the first phase you take charge of meals and refeeding with our coaching, reduce AN negotiations, and restore nutrition. Later phases return control and focus on teenage life again. Research comparing FBT with individual therapy supports better recovery rates with this approach for many adolescents.[1][5]

Medication. Antidepressants like fluoxetine can help some other eating problems (for example bulimia) and mood disorders, but trials show fluoxetine does not prevent relapse in anorexia after weight is restored and is not the main treatment to make weight come back. Food plus family treatment are the foundations.[3][4]

Consent. We prefer voluntary care. If she becomes so unwell she cannot weigh the risks of refusing treatment, parents and doctors may need to use legal powers in this state/country to keep her safe — we will explain that clearly if it becomes relevant.[4]

Close. Summarise, teach-back, crisis numbers, next FBT appointment, written red-flag card. [2][4]

References

  1. [1]Lock J, Le Grange D, Agras WS, et al. Randomized clinical trial comparing family-based treatment with adolescent-focused individual therapy for adolescents with anorexia nervosa Arch Gen Psychiatry, 2010.PMID 20921118
  2. [2]Society for Adolescent Health and Medicine, Golden NH, Katzman DK, et al. Position Paper of the Society for Adolescent Health and Medicine: medical management of restrictive eating disorders in adolescents and young adults J Adolesc Health, 2015.PMID 25530605
  3. [3]Walsh BT, Kaplan AS, Attia E, et al. Fluoxetine after weight restoration in anorexia nervosa: a randomized controlled trial JAMA, 2006.PMID 16772623
  4. [4]Hay P, Chinn D, Forbes D, et al. Royal Australian and New Zealand College of Psychiatrists clinical practice guidelines for the treatment of eating disorders Aust N Z J Psychiatry, 2014.PMID 25351912
  5. [5]Couturier J, Kimber M, Szatmari P. Efficacy of family-based treatment for adolescents with eating disorders: a systematic review and meta-analysis Int J Eat Disord, 2013.PMID 22821753