Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 35-year-old man with Marfan syndrome presents with sudden-onset severe chest pain, dyspnea, and a new diastolic murmur at the left sternal border. His blood pressure is elevated …
A 28-year-old woman with a history of acute rheumatic fever now presents with a new diastolic murmur at the apex, dyspnea at rest, and orthopnea. Echocardiography shows a thickened…
A 55-year-old woman with a 10-year history of type 2 diabetes mellitus and hyperlipidemia (LDL 156 mg/dL despite atorvastatin) presents to the emergency department with acute subst…
A 66-year-old man with type 2 diabetes and 40 pack-year smoking history presents with cramping calf pain after walking two blocks that resolves with rest. Vital signs: BP 158/92, H…
An otherwise healthy 27-year-old woman is referred to a cardiologist because of a murmur detected by her general practitioner during a routine health maintenance examination. She h…
A 47-year-old woman returns from a 12-hour international flight and develops acute left calf pain, swelling, and warmth. Vital signs: BP 132/84 mmHg, HR 98 bpm, RR 18, temp 37.2°C,…
A 70-year-old man is hospitalized for an inferior wall myocardial infarction. On hospital day 1, he develops bradycardia with heart rate of 48 bpm, blood pressure 102/64 mmHg, and …
A 58-year-old woman with atrial fibrillation started on sotalol 2 days ago presents with recurrent syncope. Vital signs: BP 92/58, HR 52, RR 18, SpO2 98% on room air. ECG demonstra…
A 74-year-old man with severe COPD hospitalized for acute dyspnea receives albuterol and ipratropium nebulizers. He develops palpitations and dyspnea. Vital signs: BP 142/88, HR 12…
A 63-year-old man undergoes emergent percutaneous coronary intervention for anterior ST-elevation myocardial infarction. One hour post-procedure, telemetry shows a regular wide-com…
A 22-year-old woman develops sudden palpitations while studying. Vitals: BP 118/76, HR 190, RR 18, Temp 37°C, SpO2 98% on room air. She remains hemodynamically stable with normal m…
A 75-year-old man with hypertension and no prior cardiac history presents with acute palpitations and dyspnea. Vital signs: BP 78/46 mm Hg, HR 160/min, RR 28/min, SpO2 88% on room …
A 27-year-old man with no prior cardiac history presents with regular narrow-complex tachycardia. Vital signs show HR 180 bpm, BP 95/60 mmHg, RR 20, SpO2 98% on room air. He receiv…
A 71-year-old man with prior anterior myocardial infarction presents with palpitations and presyncope. Vital signs show BP 88/56, HR 170, RR 22, SpO2 98% on room air. ECG demonstra…
A 60-year-old man with a history of hypertension presents after sudden collapse following severe substernal chest pain. On arrival, he is unresponsive and pulseless with BP unrecor…
A 72-year-old man with COPD presents with palpitations and dyspnea. Vital signs: BP 138/82 mmHg, HR 150/min, RR 22/min, SpO2 94% on room air, temperature 37.2°C. ECG reveals regula…
A 19-year-old man presents with recurrent episodes of palpitations and syncope. Vital signs show BP 118/76 mmHg, HR 92 bpm, RR 16/min, temp 37°C, SpO2 98% on room air. Resting ECG …
A 24-year-old woman comes to the clinic because of recurrent episodes of sudden-onset palpitations that stop abruptly after she bears down or splashes cold water on her face. She i…
A 24-year-old woman presents with sudden-onset palpitations and lightheadedness. Vital signs show BP 102/68 mmHg, HR 180 bpm, RR 18, temperature 37.2°C, and SpO2 98% on room air. E…
A 64-year-old man with hypertension presents with substernal chest pain. Vital signs: BP 98/62, HR 48, RR 14, Temp 37°C, SpO2 98%. ECG shows inferior ST elevation with PR prolongat…
A 68-year-old man is on postoperative day 3 after coronary artery bypass graft surgery. He develops an irregularly irregular tachycardia with heart rate of 118/min. Vital signs sho…
A 62-year-old man with end-stage kidney disease on hemodialysis presents with generalized weakness and palpitations after missing his scheduled dialysis session. Vital signs show B…
A 64-year-old man with acute anterior wall myocardial infarction presents with frequent premature ventricular contractions. Vital signs show BP 118/76 mmHg, HR 102/min, RR 18/min, …
A 65-year-old man with recurrent ventricular tachycardia was started on antiarrhythmic therapy. Three months later, he presents with progressive dyspnea, orthopnea, and fatigue. Vi…