Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 29-year-old woman presents with history of optic neuritis. Vital signs are stable (BP 118/76, HR 78, RR 14, Temp 37°C, SpO2 98%). Brain MRI reveals one T2 hyperintense periventri…
A 44-year-old man with newly diagnosed atrial fibrillation starts flecainide 100 mg twice daily. His physician explains that reaching steady state requires approximately 5 half-liv…
A 34-year-old woman with bipolar I disorder has been stable on lithium 900 mg daily for 3 years. She presents with tremor, confusion, and ataxia. Temperature is 37.1°C, blood press…
A 30-year-old woman presents with acute-onset diplopia and gait imbalance. Vital signs: BP 118/76, HR 88, RR 16, Temp 37.2°C, SpO2 98%. On neurologic exam, leftward gaze produces f…
A 31-year-old woman with multiple sclerosis presents with electric shock-like pain radiating down her spine triggered by neck flexion. Vital signs: BP 118/76, HR 82, RR 16, Temp 37…
A 52-year-old woman with no prior neurologic history develops asymmetric vision loss, vertigo, and sensory loss in the lower extremities. Laboratory testing shows elevated inflamma…
A 39-year-old male cyclist presents with numbness of the little finger and medial half of the ring finger following a 6-hour race. Vital signs are stable (BP 128/76, HR 82, RR 16, …
A 45-year-old woman with systemic lupus erythematosus presents with acute confusion, hallucinations, and transient focal motor deficits. Vital signs: BP 148/92, HR 102, RR 20, Temp…
A 28-year-old man presents with acute bilateral leg paralysis, urinary retention, and acute lower back pain following lower back sensory loss. Vital signs: BP 128/82 mmHg, HR 92/mi…
A 33-year-old woman with MOG antibody-positive serology presents with her third episode of optic neuritis in 18 months. Vital signs: BP 118/76, HR 88, RR 16, Temp 37.2°C, SpO2 98%.…
A 41-year-old woman presents with acute paraplegia and a sensory level at T8. Two weeks later, she develops bilateral optic neuritis. Vital signs show BP 128/82, HR 88, RR 16, temp…
A 42-year-old woman with generalized anxiety disorder has been stable on sertraline 100 mg daily for 2 years. She presents to the emergency department 3 days after starting flucona…
A 34-year-old woman presents with acute vision loss in her left eye and retro-orbital pain on eye movement. Vital signs: BP 118/76, HR 88, RR 16, Temp 37.2°C, SpO2 98%. Examination…
A 34-year-old woman presents with acute vision loss in the right eye and pain with rightward gaze. Vitals: BP 118/76, HR 82, RR 16, Temp 37.2°C, SpO2 98%. Fundoscopic exam is norma…
A 72-year-old man on warfarin 5 mg daily for atrial fibrillation develops community-acquired pneumonia and is prescribed erythromycin 500 mg four times daily. Three days later, he …
A 7-year-old girl presents with fever (39.2°C), headache, and generalized tonic-clonic seizures. Vital signs show HR 110/min, RR 22/min, BP 105/68 mmHg, SpO2 98% on room air. MRI r…
A 40-year-old man presents with acute loss of consciousness, seizures, and multiple multifocal ring-enhancing lesions on brain MRI. CSF reveals lymphocytic pleocytosis with negativ…
A 28-year-old man with multiple sclerosis on interferon-beta therapy for 3 years presents with progressive encephalopathy, confusion, and ataxia over 2 months. Vital signs: BP 128/…
A 35-year-old man with no prior psychiatric history presents to the emergency department with acute-onset disorganized speech, paranoid delusions, and agitation. Vital signs are BP…
A 31-year-old woman with recently diagnosed relapsing-remitting MS presents for discussion of disease-modifying therapy. Her vital signs are stable (BP 118/76, HR 82, RR 16, Temp 3…
A 58-year-old man presents 90 minutes after sudden onset of right arm weakness and expressive aphasia. Vital signs: BP 158/92, HR 98, RR 16, temp 37.2°C, SpO2 98% on room air. Head…
A 52-year-old woman with metastatic breast cancer on active chemotherapy presents to the hospital with fever (39.2°C), productive cough, and dyspnea for 3 days. She is immunocompro…
A 41-year-old man with severe acne is prescribed isotretinoin and concurrently takes doxycycline for secondary bacterial infection. He develops severe frontal headache, blurred vis…
A 62-year-old woman with a history of type 2 diabetes mellitus and a methicillin-resistant Staphylococcus aureus skin and soft tissue infection of the right lower extremity is pres…