Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 67-year-old man with a 3-year history of progressive resting tremor, rigidity, and bradykinesia presents with emotional withdrawal and micrographia. His wife notes difficulty ini…
A 61-year-old woman with bipolar disorder treated with haloperidol for 8 years presents with involuntary repetitive lip smacking, tongue protrusion, and choreiform facial movements…
A 65-year-old woman with a 10-year history of Parkinson disease on levodopa develops sudden fluctuations in motor control—periods of excellent mobility ('on' states) alternating wi…
A 73-year-old man with Parkinson disease presents with tremor, bradykinesia, and rigidity. Vital signs: BP 138/82, HR 88, RR 16, Temp 37.1°C, SpO2 98%. He was started on carbidopa-…
A 28-year-old man with no prior psychiatric history presents with acute-onset chorea, compulsive behaviors, and emotional lability three weeks after group A streptococcal pharyngit…
A 34-year-old man presents with difficulty releasing his grip after handshaking. He reports early frontal balding and recent cataracts. Vital signs are stable: BP 128/82, HR 78, RR…
A 72-year-old man presents with slowly progressive proximal weakness over 2 years, affecting stair climbing and grip strength. Vital signs: BP 138/82, HR 88, RR 16, Temp 37.2°C, Sp…
A 58-year-old man with a history of toxic chemical exposure presents with slow, writhing, snake-like movements of his fingers and hands. Vital signs are stable (BP 128/82, HR 72, R…
A 38-year-old man with chronic spinal cord injury presents with painful lower extremity spasms and increased muscle tone disrupting sleep. Vital signs: BP 128/82, HR 78, RR 16, tem…
A 68-year-old man presents with a 3-year history of progressive difficulty initiating movement, muscle rigidity, and a resting tremor that disappears with action. He walks with sma…
A 42-year-old woman presents with involuntary jerking movements of her arms and legs that worsen with stress and improve during sleep. Family history is significant for similar sym…
A 44-year-old concert violinist presents with a 6-month history of painful involuntary flexion and abnormal posturing of the right hand exclusively during performance. Vital signs …
A 45-year-old woman presents to neurology clinic with a 2-year history of progressive involuntary jerky movements, cognitive decline, and mood disturbances. She reports her father …
A 28-year-old right-handed woman presents with a 3-month history of progressive involuntary hand posturing that occurs exclusively when she attempts to write. She reports that her …
A 45-year-old woman presents to neurology with a 5-year history of progressive involuntary twisting movements of the neck with rightward deviation, accompanied by elevation of the …
A 33-year-old man with a history of heavy alcohol use falls asleep in a chair with his arm draped over the backrest. Upon awakening, he is unable to extend his wrist and fingers. P…
A 64-year-old man with poorly controlled type 2 diabetes (HbA1c 9.2%) presents with severe pain in the right thigh progressing to weakness of hip flexion and knee extension over 4 …
A 34-year-old woman presents with acute monocular vision loss and eye pain on upgaze. MRI shows optic nerve inflammation. Three months later, she develops bilateral leg weakness an…
A 67-year-old man treated with a class III antiarrhythmic for recurrent ventricular tachycardia presents with progressive dyspnea and cough over six months. Vital signs show HR 78/…
A 7-year-old boy presents with fever (39.2°C), headache, confusion, and multifocal neurologic deficits 10 days after recovery from viral upper respiratory infection. Vital signs sh…
A 28-year-old man presents with acute bilateral leg weakness and sensory loss below the T8 dermatome following a viral illness two weeks prior. Vital signs: BP 128/82, HR 92, RR 18…
A 42-year-old woman with a 10-year history of relapsing-remitting MS presents with worsening cognitive impairment and progressive gait ataxia. Vital signs: BP 118/76, HR 88, RR 16,…
A 24-year-old man presents with 5-day progressive fever (38.9°C), headache, and altered mental status. Vital signs show HR 102, BP 128/76, RR 18, SpO2 98% on room air. Brain MRI de…
A 31-year-old man with no past medical history presents with progressive painful paresthesias in both feet and hands over 4 weeks following a diarrheal illness 2 weeks ago. Vital s…