Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 64 year old man presents with progressive gait instability and numbness in both feet. He underwent total gastrectomy 3 years ago for gastric cancer. Examination shows decreased v…
A 47-year-old woman presents with progressive unilateral hearing loss and tinnitus for 18 months, accompanied by occasional imbalance. Vital signs show BP 128/82, HR 78, RR 14, tem…
A 58 year old man presents with 8 months of progressive weakness in his hands and legs. He has muscle cramps and fasciculations. Examination shows atrophy of the intrinsic hand mus…
A 66-year-old man presents with rapidly progressive dementia, myoclonic jerks, and gait ataxia over 4 months. Vital signs: BP 138/82, HR 88, RR 16, Temp 37.2°C, SpO2 98%. Neurologi…
A 41-year-old man presents with a 6-month history of focal motor seizures. Vital signs show BP 128/82 mmHg, HR 88 bpm, RR 16/min, temperature 37.2°C, and SpO2 98% on room air. MRI …
A 16-year-old boy presents with slowly progressive proximal muscle weakness over 3 years but remains ambulatory and plays modified sports. His maternal uncle had a similar disorder…
A 70-year-old man with hypertension presents with sudden-onset violent flinging movements of his left arm and leg. Vitals: BP 158/92 mmHg, HR 88, RR 16, temp 37.2°C, SpO2 98%. He r…
A 9-year-old boy presents with recurrent nocturnal episodes of unilateral facial twitching, drooling, and speech arrest lasting 1-2 minutes, during which he remains fully aware. Vi…
A 7-year-old boy is brought to clinic by his mother who reports that he has been having multiple episodes daily where he suddenly stops what he is doing, stares blankly ahead, and …
A 16-year-old girl presents to the neurology clinic with a 6-month history of three unprovoked generalized tonic-clonic seizures. Vital signs are stable. Brain MRI is normal. EEG d…
A 15-year-old boy presents with progressive gait instability and recurrent falls over 2 years. Vital signs: BP 118/76, HR 92, RR 16, temp 37°C. Examination reveals pes cavus deform…
A 4 year old boy is brought to clinic because of frequent falls and difficulty climbing stairs. Examination shows proximal lower extremity weakness, enlarged calves, and use of his…
A 52 year old man with severe alcohol use disorder is brought to the emergency department because of confusion and unsteady gait. Examination shows horizontal nystagmus and bilater…
A 4 year old girl has focal seizures and developmental delay. Examination shows a dark red vascular lesion over the forehead and upper eyelid in the distribution of the ophthalmic …
A 29 year old woman has progressive numbness over both shoulders and upper arms. She reports burning herself while cooking without noticing until later. Examination shows bilateral…
A 4-year-old boy presents with delayed motor milestones, frequent falls, and progressive difficulty rising from the floor. Vital signs: BP 95/60, HR 98, RR 20, Temp 37°C, SpO2 98%.…
A 58-year-old man presents with progressive behavioral changes over 1 year, including social inappropriateness, impulsivity, and emotional blunting. Vital signs are stable (BP 128/…
A 43-year-old man presents with a 2-year history of progressive involuntary choreiform movements, irritability, and cognitive decline affecting work performance. Vital signs: BP 12…
A 6-year-old boy is brought to the clinic for evaluation of a small patch of hair over his lower back. Vital signs are normal (BP 110/68, HR 92, RR 20, Temp 98.6°F, SpO2 98%). Neur…
A 46-year-old man presents with a 2-week history of right-sided neck pain following a motor vehicle accident. Vital signs show BP 138/82, HR 82, RR 16, and normal temperature. Exam…
A 66-year-old woman presents with sudden severe right eye pain, headache, nausea, and vision of halos around lights. Vital signs show BP 158/92 mmHg, HR 102/min, RR 18/min, and tem…
A 71-year-old man with Parkinson disease presents with tremor at rest and bradykinesia. Vital signs show BP 138/82 mmHg, HR 68 bpm, RR 16, temp 37.2°C. He is started on combination…
A 35-year-old woman presents to neurology with a 2-year history of progressive involuntary jerking movements of her arms and legs, facial grimacing, and difficulty with voluntary m…
A 42-year-old woman presents with a 6-year history of progressive rigidity, dysarthria, and frequent episodes of sudden-onset involuntary muscle contractions causing abnormal neck …