Psych MEQs / SAQs · Consultation-liaison psychiatry
FND in the medical setting — C-L ward MEQ
FRANZCP-style MEQ on hospital FND: rule-in diagnosis, liaison explanation, team language, Physio4FMD/CODES-era pathways, and safety-nets.
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Target exams
Model answer
Reveal model answer
(i) Formulation. Working diagnosis: functional neurological symptom disorder (FND) with mixed motor features (weakness, tremor) and seizure-like events, acute presentation in the medical setting. Justification is rule-in: Hoover’s sign, give-way, tremor entrainment/internal inconsistency — not merely normal CT. Symptoms are real and involuntary; this is not malingering by default. A stressor/panic context supports formulation but is not required for DSM-5-era diagnosis. Joint neurology–C-L ownership rather than “psych take-over.”[1][3][7]
(ii) Explanation and staff language. Structure bedside explanation: name FND; affirm symptoms are real and not feigned; show how positive signs mean pathways can still work; offer a careful function/software metaphor; give hope and a plan; invite questions; provide written information. With staff: reframe pejorative “attention-seeking” as harmful and inaccurate; model non-stigmatising documentation; align one team story before multi-voice conversations.[2][7][8]
(iii) Acute-to-discharge plan. (1) Shared diagnostic letter. (2) Attack plan: protect, time, calm environment; avoid automatic AED escalation without neurology indication. (3) Specialist physiotherapy per Nielsen consensus; cite Physio4FMD as phase 3 specialist physio context for functional motor disorder. (4) Psychological pathway (CBT-informed; for seizures, LaFrance/CODES evidence base with honest endpoints). (5) Treat mood/anxiety comorbidity if present. (6) Stop non-indicated tests; safety-net red flags. (7) Booked outpatient FND/neuropsychiatry follow-up — do not discharge without a plan.[4][5][6][7][8]
(iv) Red flags / dual pathology. Hyperacute stroke features, progressive UMN signs, encephalopathy, fever, first atypical seizures without adequate epilepsy consideration, sphincter failure, or evolving inconsistency with pure FND — reopen organic work-up. Dual pathology (FND plus epilepsy/MS) remains possible. Capacity and suicide risk still assessed as in any C-L consult.[1][7][8]
Common errors
- Accepting “psych take-over” without joint neurology ownership
- Using only normal imaging as the diagnostic criterion
- Colluding with pejorative staff labels
- Discharging without explanation, physio/psychology pathway, or safety-net
- Defaulting to malingering
References
- [1]Espay AJ, Aybek S, Carson A, et al. Current Concepts in Diagnosis and Treatment of Functional Neurological Disorders JAMA Neurol, 2018.PMID 29868890
- [2]Stone J, Burton C, Carson A Recognising and explaining functional neurological disorder BMJ, 2020.PMID 33087335
- [3]Daum C, Hubschmid M, Aybek S The value of 'positive' clinical signs for weakness, sensory and gait disorders in conversion disorder: a systematic and narrative review J Neurol Neurosurg Psychiatry, 2014.PMID 23467417
- [4]Nielsen G, Stone J, Matthews A, et al. Physiotherapy for functional motor disorders: a consensus recommendation J Neurol Neurosurg Psychiatry, 2015.PMID 25433033
- [5]Nielsen G, Stone J, Lee TC, et al. Specialist physiotherapy for functional motor disorder in England and Scotland (Physio4FMD): a pragmatic, multicentre, phase 3 randomised controlled trial Lancet Neurol, 2024.PMID 38768621
- [6]Goldstein LH, Robinson EJ, Mellers JDC, et al. Cognitive behavioural therapy for adults with dissociative seizures (CODES): a pragmatic, multicentre, randomised controlled trial Lancet Psychiatry, 2020.PMID 32445688
- [7]Aybek S, Perez DL Diagnosis and management of functional neurological disorder BMJ, 2022.PMID 35074803
- [8]Bennett K, Diamond C, Hoeritzauer I, et al. A practical review of functional neurological disorder (FND) for the general physician Clin Med (Lond), 2021.PMID 33479065