Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 45-year-old man presents to neurology clinic with an 8-year history of progressive bilateral hand tremor that interferes with writing and holding a coffee cup. The tremor is abse…
A 24 year old man comes to the emergency department because of progressive weakness for 3 days. One week ago he had watery diarrhea after eating undercooked poultry. He now has dif…
A 42-year-old man with a history of acute ischemic stroke 6 months ago presents to the emergency department following a seizure witnessed by his wife. She reports he suddenly lost …
A term newborn presents with abdominal distension, bilious vomiting, and failure to pass meconium within 48 hours. Vital signs show HR 145 bpm, RR 38/min, temp 37.2°C. Physical exa…
A 9-year-old girl presents with frequent episodes of blank staring during class lasting 5-10 seconds, provoked by hyperventilation, with no postictal confusion. Vital signs: BP 110…
A 24-year-old woman with no prior seizure history presents after a single generalized tonic-clonic seizure following 3 days of poor sleep, intense stress from medical school exams,…
A 72-year-old man with a 10-year history of hypertension presents to the emergency department with a generalized tonic-clonic seizure. His wife reports he suffered an acute ischemi…
A 3-year-old boy presents with multiple daily episodes of sudden staring and unresponsiveness lasting 5-10 seconds, occurring 10-20 times per day. Vital signs are normal: BP 95/60 …
A 45-year-old man with a 10-year history of left temporal lobe epilepsy presents to clinic after experiencing 3 breakthrough seizures over the past month despite reported adherence…
A 19-year-old woman presents to her neurologist 6 weeks after starting valproic acid for newly diagnosed idiopathic generalized epilepsy. She reports tremor, progressive weight gai…
A 44-year-old man with alcohol use disorder presents with 8 minutes of continuous generalized convulsions without consciousness recovery. Vitals: BP 148/92, HR 118, RR 22, SpO2 88%…
A 38-year-old woman with a 5-year history of temporal lobe epilepsy presents to neurology clinic with recurrent breakthrough seizures over the past 3 months. She reports that durin…
A 4-year-old boy with developmental delay presents with frequent falls from sudden loss of postural tone and intermittent staring spells. His parents report nocturnal generalized c…
A 45-year-old man with generalized tonic-clonic seizures has been taking phenytoin 300 mg daily for 3 years with good seizure control. Over the past 6 months, he has experienced an…
A 24-year-old woman presents with recurrent convulsive episodes. During a typical spell, video EEG shows asynchronous limb thrashing, eyes tightly closed, and no epileptiform activ…
A 62-year-old woman with a 10-year history of hypertension presents to the emergency department following a seizure episode. She reports that while sitting at dinner, she experienc…
A 7-year-old girl is brought to clinic because her teacher reports multiple daily episodes during which she abruptly stops speaking and stares for about 10 seconds, then resumes ac…
A 6 month old boy has clusters of sudden flexion of the neck, trunk, and extremities shortly after waking. His parents note developmental regression over the past month. EEG shows …
A 3-year-old previously healthy boy is brought to the emergency department by his mother after experiencing a seizure at home. She reports that this morning he developed fever (39.…
A 31 year old woman presents with blurry vision in her right eye and pain with eye movement for 2 days. Six months ago she had transient numbness of the left leg that resolved spon…
A 74 year old man with cervical spondylosis falls and strikes his chin on a countertop. He immediately develops weakness in both upper extremities that is worse than in his legs. P…
A 2-month-old male presents with progressive head circumference enlargement, persistent vomiting, and irritability. Vital signs show HR 145 bpm, RR 38/min, BP 92/58 mmHg, temperatu…
A 68-year-old man with no family history presents with asymmetric akinesia, rigidity on the more affected side, and progressive cortical sensory loss. He develops apraxia and alien…
A 52-year-old woman with a 10-year history of involuntary, irregular jerking movements of the arms and legs develops progressive cognitive decline and mood disturbances. Brain MRI …