Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 3-year-old boy presents with 5 days of bloody diarrhea and now oliguria. Vital signs: BP 128/82 mmHg, HR 118/min, RR 24/min, Temp 37.2°C, SpO2 98% on room air. Serum creatinine i…
A 64-year-old woman admitted for acute pancreatitis develops acute kidney injury on hospital day 3. Urinalysis shows muddy brown casts and tubular epithelial cells. Creatinine is 3…
A 67-year-old man with hypertension and type 2 diabetes presents with acute onset oliguria after undergoing coronary angiography for unstable angina. Serum creatinine increased fro…
A 64-year-old man with chronic kidney disease (baseline creatinine 2.5 mg/dL) is started on lisinopril for hypertension. Two weeks later, his serum creatinine rises to 3.8 mg/dL. U…
A 55-year-old man with type 2 diabetes and hypertension develops acute kidney injury after 2 days of vomiting and diarrhea. Physical exam shows decreased skin turgor and orthostati…
A 52-year-old man with recent cardiac catheterization for acute coronary syndrome develops acute kidney injury the next morning. His creatinine rises from 1.0 to 2.8 mg/dL in 24 ho…
A 65-year-old man with hypertension and diabetes presents with acute onset oliguria and serum creatinine of 4.2 mg/dL (baseline 1.0 mg/dL). Urinalysis shows muddy brown casts. He t…
A 72-year-old woman admitted with community-acquired pneumonia receives gentamicin therapy. On hospital day 3, she develops oliguria with urine output of 800 mL/day. Vital signs sh…
A 62-year-old man with sepsis from pneumonia receives aggressive IV fluid resuscitation. Despite 5 liters given, his blood pressure remains 88/52 mmHg, urine output is 0.2 mL/kg/hr…
A 41-year-old man with HIV infection (CD4 count 45 cells/μL) is found unresponsive with seizures. Head CT shows mass lesions. He is started empirically on trimethoprim-sulfamethoxa…
A 67-year-old man with diffuse atherosclerosis and poorly controlled hypertension despite amlodipine, hydrochlorothiazide, and metoprolol presents with acute dyspnea and fatigue. V…
A 32-year-old man presents with a 3-month history of progressive dyspnea on exertion. He denies chest pain, fever, or recent infections. Vital signs are normal. Chest examination r…
A 34-year-old woman with a 12-year history of moderate persistent asthma presents to the emergency department with acute-onset severe dyspnea, unilateral left pleuritic chest pain,…
A 58-year-old man with sepsis presents with acute kidney injury. Vital signs show BP 92/58 mmHg, HR 118/min, RR 22/min, temperature 39.2°C, and SpO2 98% on room air. Serum creatini…
A 14-year-old boy with persistent allergic asthma is started on daily inhaled budesonide plus albuterol rescue inhaler. One month later, he presents with white plaques on the tongu…
A 58-year-old man with chronic kidney disease presents with fatigue and dyspnea. Vital signs: BP 156/92 mmHg, HR 88/min, RR 18/min, SpO2 98% on room air. Serum creatinine is 3.2 mg…
A 19-year-old woman presents with episodic cough, wheezing, and chest tightness worsening with exercise and seasonal pollen exposure. Current vital signs show BP 118/76, HR 102, RR…
A 7-year-old boy recently immigrated with his family is found to have a new positive tuberculin skin test during school screening. He is asymptomatic. Chest radiograph shows a calc…
A 38-year-old man with untreated HIV presents with progressive dyspnea, nonproductive cough, and fever for 3 weeks. Vitals: BP 118/76, HR 102, RR 24, Temp 38.5°C, SpO2 88% on room …
A 62-year-old man with alcohol use disorder and poorly controlled diabetes (HbA1c 9.2%) presents with fever (39.1°C), dyspnea, and productive cough. Vitals show BP 128/82, HR 104, …
A 55-year-old man presents 3 days after attending a large hotel convention with high fever (39.2°C), productive cough, diarrhea, confusion, and progressive shortness of breath. Vit…
A 43-year-old woman presents with acute-onset pleuritic chest pain and dyspnea 4 days after pelvic surgery. Vital signs reveal HR 118 bpm, RR 28/min, BP 132/84 mmHg, SpO2 88% on ro…
A 58-year-old man with a 40-pack-year smoking history presents with progressive dyspnea on exertion and difficulty climbing stairs. Vital signs show BP 142/88 mmHg, HR 102 bpm, RR …
A 24-year-old man undergoes repair of a femoral shaft fracture after a motor vehicle collision. Two days postoperatively, he develops acute dyspnea, confusion, and a petechial rash…