Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 67-year-old man initiated high-intensity atorvastatin therapy 3 weeks ago following myocardial infarction. He now presents with diffuse myalgias and proximal lower extremity weak…
A 29-year-old woman presents with worsening diplopia and dysphagia by day's end. Vital signs show BP 118/76 mmHg, HR 82/min, RR 16/min, temp 37°C, SpO2 98% on room air. Examination…
A 42-year-old woman with myasthenia gravis and a recent upper respiratory infection presents with worsening dysphagia, nasal speech, and dyspnea. Vital signs show BP 128/82, HR 102…
A 35-year-old woman presents with fatigable ptosis and diplopia. Vital signs: BP 118/76, HR 88, RR 16, Temp 37°C, SpO2 98%. She reports symptoms worsen with activity and improve wi…
A 67-year-old man presents with progressive tremor. Vital signs: BP 138/82, HR 78, RR 16, temp 37.2°C, SpO2 98%. On examination, he demonstrates a 4-Hz rhythmic pill-rolling tremor…
A 49-year-old man with Parkinson disease controlled on selegiline presents with fever (38.9°C), agitation, diarrhea, and inducible ankle clonus after starting sertraline for depres…
A 70-year-old man with hypertension and no prior stroke history presents with sudden onset wild flinging movements of his left arm and leg. Vital signs show BP 158/92 mmHg, HR 88/m…
A 4-month-old boy presents with poor feeding, weak cry, constipation, and progressive generalized hypotonia over the past week. Parents report recent honey ingestion. Vital signs: …
A 32-year-old man presents with jaw stiffness and painful generalized muscle spasms 1 week after a puncture wound from a rusty nail. Vital signs show BP 145/92 mmHg, HR 110/min, RR…
A 49-year-old man presents with 3 months of progressive symmetric leg weakness and paresthesias. He reports difficulty climbing stairs and denies bowel/bladder dysfunction. Vital s…
A 58-year-old man presents with progressive hand weakness and muscle cramps over 6 months. Vital signs: BP 128/82, HR 88, RR 16, Temp 37.0°C, SpO2 98%. Examination reveals fascicul…
A 25-year-old man develops right foot drop and difficulty dorsiflexing the foot after wearing a tight leg cast for 5 days. Vital signs are stable (BP 120/80, HR 78, RR 16). Examina…
A 44-year-old woman presents with nighttime numbness and tingling in the thumb, index finger, middle finger, and lateral half of the ring finger that awakens her from sleep. Vital …
An 8-year-old unvaccinated boy presents with fever (38.9°C), sore throat, and progressive asymmetric flaccid paralysis of the left leg over 3 days. Vital signs show HR 102 bpm, BP …
A 3-month-old male infant presents with poor feeding and generalized hypotonia for 2 weeks. Vital signs show HR 145/min, RR 32/min, BP 78/52 mmHg, and normal temperature. Physical …
A 26-year-old man presents with difficulty releasing his grip after handshaking. He reports daytime sleepiness and progressive frontal balding. Vital signs show BP 118/76, HR 82, R…
A 42-year-old woman presents with progressive fatigable ptosis and nasal speech. Vital signs show BP 128/82, HR 88, RR 16, Temp 37.2°C, SpO2 98% on room air. Serum anti-acetylcholi…
A 41-year-old man presents 10 days after acute gastroenteritis with diplopia, gait unsteadiness, and mild proximal leg weakness. Vital signs: BP 138/82, HR 92, RR 18, temp 37.2°C, …
A full-term newborn presents on day 1 of life with a weak cry, poor suck, and diffuse hypotonia. Vital signs show HR 145/min, RR 38/min, and normal oxygen saturation. The mother re…
A 46-year-old battery factory worker presents with acute wrist drop and foot drop. He reports abdominal pain, irritability, and constipation for 3 weeks. Vital signs: BP 148/92, HR…
A 7-month-old male presents with progressive weakness and profound hypotonia since 5 months of age. Vital signs: HR 120/min, RR 28/min, BP 85/55 mmHg, temperature 37°C, SpO2 98% on…
A 49-year-old man presents with 4 months of progressive symmetric weakness and paresthesias in his arms and legs. Vital signs: BP 138/82, HR 88, RR 16, Temp 37.2°C, SpO2 98%. Deep …
A 58-year-old man with a 6-year history of Parkinson disease presents with severe involuntary writhing movements of his arms and legs that develop 45 minutes after taking levodopa …
A 23-year-old woman presents to the emergency department with severe colicky abdominal pain, anxiety, and acute proximal arm and leg weakness. Vital signs show BP 148/92 mmHg, HR 1…