Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 67 year old man comes to the emergency department with 90 minutes of crushing substernal chest pain radiating to the left arm. He has hypertension, hyperlipidemia, and a 40 pack …
A 61-year-old man develops crushing substernal chest pain while shoveling snow and arrives 20 minutes after symptom onset. Vital signs: BP 158/92 mmHg, HR 102 bpm, RR 18, temp 37.2…
A 45 year old man with a history of heavy alcohol use presents with severe epigastric pain radiating to the back and repeated vomiting. Serum lipase is markedly elevated. CT of the…
A 42-year-old woman undergoes appendectomy for acute appendicitis. Her postoperative course is complicated by wound erythema and edema on postoperative day 5. Vital signs show HR 8…
A 63-year-old man with hypertension (on lisinopril) undergoes colectomy for stage II colon cancer. On postoperative day 6, vital signs are stable (BP 138/82, HR 88, RR 16, temp 37.…
A 36 year old man presents with 3 months of cough, weight loss, night sweats, and intermittent hemoptysis. He recently immigrated from an area with high tuberculosis prevalence. Ch…
A 74 year old woman with long standing atrial fibrillation not taking anticoagulation is brought to the emergency department because of sudden right sided weakness and aphasia that…
A 68-year-old man with diabetes presents with pyelonephritis and gram-negative bacteremia. Despite ceftriaxone and gentamicin, he develops hypotension (BP 85/52), tachycardia (HR 1…
A 43 year old man with chronic hepatitis B develops hepatocellular injury mediated by cytotoxic T lymphocytes. Liver biopsy shows hepatocytes undergoing apoptosis with condensed ch…
A 67-year-old man presents with urinary hesitancy, weak stream, and nocturia. Vital signs show BP 142/88, HR 78, RR 16, temp 37.2°C. Digital rectal examination reveals a symmetrica…
A 69 year old man with poorly controlled diabetes mellitus and peripheral arterial disease presents with a black painful right foot after several days of worsening toe discoloratio…
A 64 year old man with a 50 pack year smoking history presents with weight loss, cough, constipation, and confusion. Chest imaging reveals a hilar mass. Laboratory studies show cal…
A 23-year-old man is hospitalized with a femoral shaft fracture from a motorcycle collision. Thirty-six hours later, he develops tachypnea (RR 28/min), confusion, and a petechial r…
A 19-year-old college student presents with acute bacterial meningitis. Vital signs show BP 118/76 mmHg, HR 102 bpm, RR 22/min, temperature 39.2°C, and SpO2 98% on room air. CSF an…
A 72-year-old man with ischemic cardiomyopathy presents with progressive dyspnea and bilateral lower extremity edema. Vital signs: BP 92/58, HR 104, RR 22, SpO2 88% on room air. Ch…
A 24-year-old woman of African ancestry presents with a progressively enlarging, raised scar at an ear-piercing site that developed over 6 months. Vital signs are stable (BP 118/76…
A 61 year old man with long standing hypertension and tobacco use develops sudden severe pain and pallor of the right foot. Angiography shows acute occlusion of a popliteal artery …
A 31-year-old woman with no prior abnormal Pap smears presents for routine cervical cancer screening. Vital signs are normal (BP 118/76, HR 78, RR 14, Temp 37°C). Pap testing revea…
A 68-year-old man with a 20-year history of Crohn's disease presents with progressive weight loss and diarrhea. Vital signs show BP 128/76, HR 92, RR 18, Temp 37.2°C, SpO2 98%. Col…
A 58-year-old man presents with a painful violaceous scalp mass that developed 8 years after radiation therapy for brain lymphoma. Vital signs show BP 138/82, HR 88, RR 16, Temp 37…
A 12 year old boy receives radiation therapy for a malignant brain tumor. Two days later, a biopsy from nearby irradiated tissue shows shrunken eosinophilic cells with chromatin co…
A 68-year-old man with a 20-year history of hepatitis C and known cirrhosis presents with right upper quadrant pain and early satiety. Vital signs are stable. Ultrasound reveals a …
A 58-year-old woman presents with a palpable left breast mass. Vital signs show BP 128/82, HR 82, RR 16, temp 37°C, SpO2 98%. Mammography reveals a 2.3 cm irregular density with mi…
A 19-year-old woman with known peanut allergy accidentally ingests a dessert containing peanuts. Within minutes, she develops diffuse urticaria, wheezing, and lightheadedness. Vita…