Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 46-year-old man with crush injury is admitted after being trapped under debris for several hours. He has dark urine and severe muscle pain. Laboratory studies show potassium 7.4 …
A 6-year-old boy presents with a 1-week history of abdominal pain, arthralgia, and palpable purpura on his buttocks and lower extremities. Vital signs show BP 118/76 mmHg, HR 98/mi…
A 72-year-old man with SIADH secondary to small cell lung cancer presents with acute confusion and generalized seizures. Vital signs: BP 128/76 mmHg, HR 92 bpm, RR 18/min, Temp 37.…
A 42-year-old man comes to the emergency department because of fatigue, dark urine, and reduced urine output for 1 week. Serum creatinine has risen from 1.0 mg/dL to 3.9 mg/dL in 1…
A 52-year-old man with a 12-year history of stage 4 chronic kidney disease (eGFR 18 mL/min/1.73m²) presents to clinic with progressive nausea, constipation, and nocturia. He has be…
A study of a new antihypertensive drug that affects glomerular filtration rate is being conducted. Infusion of drug X causes constriction of the efferent arteriole. After infusion …
A 4-year-old boy presents with periorbital and ankle edema. Vital signs: BP 108/62 mmHg, HR 94/min, RR 22/min, Temp 37.2°C, SpO2 98%. Urinalysis reveals 4+ proteinuria with no hema…
A 32-year-old woman with a 2-year history of systemic lupus erythematosus presents with nephrotic syndrome and hematuria. Laboratory studies show positive ANA, low C3/C4 levels, an…
A 68-year-old man with chronic kidney disease stage 3 presents with nephrotic syndrome and hypercoagulability. Serum albumin is 2.1 g/dL and urine protein exceeds 8 g/day. Kidney b…
A 4-year-old girl with systemic lupus erythematosus presents with nephrotic syndrome (proteinuria 5.8 g/day, serum albumin 2.0 g/dL), hematuria, and declining renal function. Immun…
A 26-year-old man with no significant past medical history presents with acute kidney injury, hematuria with dysmorphic RBCs and RBC casts, and mild hypertension. He denies recent …
A 35-year-old woman on long-term proton pump inhibitor therapy presents with weakness and recurrent palpitations. She has had two prior admissions for torsades de pointes. Laborato…
A 47-year-old woman with Crohn disease has had months of watery diarrhea. She now complains of weakness and lightheadedness. Laboratory studies show sodium 138 mEq/L, potassium 2.8…
A 35-year-old man presents with gross hematuria and flank pain one week after an upper respiratory infection. Vital signs: BP 128/82 mmHg, HR 88/min, RR 16/min, Temp 37.2°C, SpO2 9…
A 38-year-old man with untreated type 1 diabetes mellitus presents with polyuria, abdominal pain, and deep rapid breathing. Laboratory studies show glucose 540 mg/dL, potassium 5.8…
A 62-year-old man with a 15-year history of type 2 diabetes mellitus presents to the clinic with progressive lower extremity edema and frothy urine over the past 3 months. He repor…
A 32-year-old man presents with progressive bilateral sensorineural hearing loss and progressive vision changes. Laboratory evaluation reveals persistent hematuria, proteinuria of …
A 36-year-old man with HIV presents with progressive bilateral lower extremity edema and frothy urine. Vital signs: BP 128/82 mmHg, HR 92/min, RR 16/min, Temp 37°C, SpO2 98%. Labor…
A 41-year-old man with Child-Pugh Class C cirrhosis presents to the emergency department with progressive confusion, asterixis, and lethargy over 24 hours. He has been taking furos…
A 45-year-old woman with a 15-year history of type 2 diabetes presents with nephrotic syndrome. Vital signs: BP 154/92 mmHg, HR 88 bpm, RR 16, Temp 37°C, SpO2 98%. Labs reveal prot…
A 13-year-old boy presents with periorbital and lower extremity edema. Vital signs reveal BP 142/88 mmHg, HR 88/min, RR 18/min, and Temp 37.2°C. Urinalysis shows hematuria and prot…
A 35-year-old man with systemic lupus erythematosus presents with hematuria and dysuria. Vital signs show BP 145/92 mmHg, HR 88/min, RR 16/min, temperature 37.2°C, SpO2 98%. Urinal…
A 62-year-old woman with a history of systemic sclerosis presents with acute kidney injury, hypertension (200/120 mmHg), and microangiopathic hemolytic anemia. Serum creatinine inc…
A 38-year-old woman presents to the clinic with a 3-month history of progressive headaches, polyuria, and muscle weakness. Her blood pressure is 162/98 mmHg. Laboratory studies sho…