Severe Mental Illness Practice Questions

Question 1

A 30-year-old woman presents with episodes of feeling detached from herself and her surroundings, as if watching herself from outside her body. These episodes last 10-15 minutes and cause significant distress. What is the most likely diagnosis?

Accepted Answer

Dissociative disorder

Answer

Panic disorder

Answer

Schizophrenia

Answer

Depression

Answer

Anxiety disorder

Question 2

A 40-year-old woman presents with recurrent episodes of palpitations, sweating, and tremor lasting 10-15 minutes. These occur 2-3 times per week with no obvious trigger. Physical examination and ECG during an episode are normal. What is the most likely diagnosis?

Accepted Answer

Panic disorder

Answer

Hyperthyroidism

Answer

Cardiac arrhythmia

Answer

Pheochromocytoma

Answer

Caffeine excess

Question 3

A 27-year-old woman presents with amenorrhea, weight loss, and excessive exercise. She has fine lanugo hair and her BMI is 16 kg/m². She denies having an eating disorder. What is the most likely diagnosis?

Accepted Answer

Anorexia nervosa

Answer

Hyperthyroidism

Answer

Depression

Answer

Celiac disease

Answer

Addison's disease

Question 4

A 78-year-old man presents with confusion and falls. His wife reports he has been increasingly forgetful over the past year. MMSE score is 18/30. What is the most appropriate initial investigation?

Accepted Answer

CT head

Answer

MRI brain

Answer

Lumbar puncture

Answer

EEG

Answer

PET scan

Question 5

A 58-year-old man presents with progressive memory loss and behavioral changes over 10 months. MRI shows asymmetric frontotemporal atrophy. What is the most appropriate symptomatic treatment?

Accepted Answer

Supportive care only

Answer

Cholinesterase inhibitors

Answer

Memantine

Answer

Antipsychotics for behavior

Answer

Antidepressants

Question 6

A 68-year-old man presents with progressive memory loss and parkinsonism. He has visual hallucinations and fluctuating cognition. What is the most likely diagnosis?

Accepted Answer

Lewy body dementia

Answer

Alzheimer's disease

Answer

Parkinson's disease dementia

Answer

Vascular dementia

Answer

Frontotemporal dementia

Question 7

A 70-year-old man presents with confusion, agitation, and visual hallucinations that fluctuate throughout the day. He has a shuffling gait and mild tremor. His daughter reports he often falls asleep during conversations. What is the most likely diagnosis?

Accepted Answer

Lewy body dementia

Answer

Alzheimer's disease

Answer

Vascular dementia

Answer

Frontotemporal dementia

Answer

Delirium

Question 8

A 52-year-old woman presents with progressive memory loss and personality changes over 8 months. MRI shows frontotemporal atrophy. CSF shows elevated tau but normal amyloid-β. What is the most likely diagnosis?

Accepted Answer

Frontotemporal dementia

Answer

Alzheimer's disease

Answer

Lewy body dementia

Answer

Vascular dementia

Answer

Normal pressure hydrocephalus

Severe Mental Illness

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