Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 52-year-old man with hypertension controlled on a single antihypertensive agent presents for a routine CT abdomen for evaluation of flank pain. Imaging reveals a 2.3-cm left adre…
A 72-year-old man with hypertension and diabetes presents with progressive memory loss, confusion, and polyuria over 6 months. Serum sodium is 118 mEq/L (normal 135-145). Urine osm…
A 63-year-old woman with a history of lung cancer presents with sudden onset severe back pain, hypotension (BP 85/50 mmHg), and altered mental status. She is found to have Na+ 128 …
A 67-year-old man with severe hypertension (BP 178/104 mmHg) and hypokalemia (K+ 2.8 mEq/L) undergoes evaluation. Morning cortisol is 42 mcg/dL (normal <20), ACTH is 8 pg/mL (norma…
A 45-year-old woman presents with progressive proximal muscle weakness, easy bruising, and facial plethora. Her BP is 165/95 mmHg. Laboratory studies show hypokalemia and metabolic…
A 29-year-old woman with medullary thyroid carcinoma presents with hypertension (BP 158/96 mmHg), tachycardia (HR 104/min), and anxiety. Laboratory studies reveal elevated 24-hour …
A 70-year-old man with metastatic lung adenocarcinoma presents with progressive fatigue, anorexia, and weight loss. Vital signs show BP 92/58 mmHg, HR 104 bpm, RR 16, temperature 3…
A 38-year-old woman presents with a 3-month history of progressive fatigue, weight loss, and orthostatic dizziness. She reports intense salt cravings. On examination, BP is 92/58 m…
A 7-year-old girl presents with pubic hair development and accelerated linear growth over 6 months. Vital signs show BP 132/88 mmHg, HR 92/min, RR 18/min, temp 37°C, SpO2 98%. She …
A 19-year-old college student presents to the emergency department with fever (39.8°C), hypotension (BP 78/52 mmHg), tachycardia (HR 128/min), and a rapidly progressive petechial r…
A 57 year old man with rheumatoid arthritis abruptly stops taking long term prednisone because of worsening edema. Two days later he develops weakness, nausea, and dizziness. Blood…
A 56-year-old man with hypertension on lisinopril presents with severe frontal headache, neck stiffness, and sudden-onset bitemporal hemianopsia. Vital signs: BP 158/92 mmHg, HR 88…
A 46 year old woman has central obesity, purple abdominal striae, and glucose intolerance. ACTH is low, and serum cortisol is elevated with no suppression after low or high dose de…
A 32-year-old man with a history of multiple endocrine neoplasia type 1 (MEN-1) presents to the emergency department with a 2-month history of episodic severe headaches, profuse di…
A 28-year-old woman with autoimmune thyroiditis presents with progressive fatigue, dizziness, and orthostatic hypotension. Vital signs show BP 92/58 mmHg, HR 102 bpm, RR 18, temper…
A 6-year-old boy presents with accelerated linear growth, pubic hair development, and genital enlargement. Vital signs show BP 128/82 mmHg, HR 92 bpm, RR 18, temp 37°C, SpO2 98%. L…
A 50-year-old woman with hypertension (BP 168/104 mmHg, HR 88/min) is found to have a 2-cm adrenal adenoma on CT imaging producing elevated aldosterone (28 ng/dL; normal <16). Labo…
A 6-day-old female with ambiguous genitalia presents with vomiting and dehydration. Vital signs show BP 65/40 mmHg, HR 155/min, RR 32/min, and temperature 37.2°C. Laboratory studie…
A 17-year-old boy presents with mucosal neuromas on his lips and tongue, marfanoid habitus, and chronic constipation. Vital signs are BP 155/92 mmHg, HR 98 bpm, RR 16, Temp 37°C, S…
A 41-year-old man with a 10-year history of hypertension presents to clinic for routine follow-up. On examination, blood pressure is 158/96 mmHg. Laboratory studies show serum pota…
A 36-year-old man with a prolactin-secreting pituitary adenoma presents with recurrent nephrolithiasis, recurrent peptic ulcers, and diarrhea. Vital signs: BP 158/95 mmHg, HR 88/mi…
A 28-year-old woman undergoes routine laboratory testing and is found to have a serum calcium of 11.1 mg/dL on repeated occasions. She denies polyuria, bone pain, or nephrolithiasi…
A 16-year-old 46, XY phenotypic female presents with primary amenorrhea, absent breast development, and sparse pubic hair. Vital signs show BP 148/92 mmHg, HR 88/min, RR 16/min. La…
A 49-year-old woman with end-stage kidney disease underwent successful renal transplantation two years ago. She now presents with fatigue and polyuria. Vital signs: BP 148/92, HR 8…