Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 2-day-old newborn presents with severe metabolic acidosis (pH 7.18), vomiting, hypotonia, and altered mental status. Vital signs show tachycardia (HR 145/min), tachypnea (RR 32/m…
A 21-year-old female presents to the emergency department with complaints of breathing difficulty, nausea, and vomiting for the past 4 hours. History reveals that the patient has t…
A 16-year-old boy presents with progressive tremor, dysarthria, and declining school performance over 6 months. Vital signs show BP 118/76, HR 88, RR 16, Temp 37.2°C, SpO2 98% on r…
A 61-year-old groundskeeper with decades of pesticide exposure presents with progressive resting tremor, bradykinesia, and rigidity. Vital signs: BP 138/82, HR 62, RR 16, Temp 37°C…
A 36-year-old Greek male with viral pneumonia presents with acute hemolysis. Vital signs show BP 128/82 mmHg, HR 102/min, RR 22/min, temperature 38.2°C, SpO2 94% on room air. Labor…
A 2-year-old boy presents with growth delay and progressive abdominal fullness. Vital signs show HR 102/min, BP 95/62 mmHg, RR 20/min, temperature 37.2°C. Physical examination reve…
A 7-month-old infant presents with extreme irritability, developmental regression, and feeding difficulty over the past 6 weeks. Vital signs show HR 128/min, RR 26/min, temp 37.2°C…
A 26-year-old African American man comes to the physician because of a 3-day history of fatigue, back pain, and dark urine. One week ago, he developed a headache and was treated wi…
A 17-year-old male presents with acute left flank pain and gross hematuria. Vital signs show BP 128/82 mmHg, HR 92 bpm, RR 16, temp 37.2°C, SpO2 98%. Urinalysis reveals hexagonal c…
A 68-year-old man with a 3-month history of weight loss and anemia presents with colon adenocarcinoma. Vital signs show BP 138/82, HR 92, RR 18, Temp 37.2°C. Laboratory findings re…
A 7-month-old girl with fair skin and microcephaly presents with developmental delay and recurrent vomiting. Parents report a distinctive musty odor to her diapers and note she has…
A 4-year-old boy with developmental delay presents with self-injurious behavior, repeatedly striking his head against walls and severely biting his fingertips requiring bandaging. …
A 34-year-old male with newly diagnosed hyperlipidemia presents with fatigue and recurrent infections. Vital signs: BP 128/82, HR 88, RR 16, Temp 37.2°C, SpO2 98%. Laboratory studi…
A 23-year-old woman began oral contraceptive pills 6 weeks ago. She reports palpitations and mild heat intolerance but denies weight loss or neck pain. Vital signs show HR 92 bpm, …
A 41-year-old woman presents with a 3-month history of fatigue, constipation, weight gain, and cold intolerance. Vital signs show HR 52 bpm, BP 128/82 mmHg, temperature 36.2°C. Phy…
A 78-year-old woman presents with a 2-month history of rapidly enlarging neck mass, progressive dysphagia, and hoarseness. Vital signs show BP 138/82, HR 92, RR 18, temp 37.2°C, Sp…
A 45-year-old woman presents with progressive fatigue, constipation, and 8-pound weight gain over three months. Vital signs show BP 128/82, HR 58, RR 14, temp 36.8°C, SpO2 98%. Phy…
A 45-year-old woman presents with acute onset neck pain, fever, and mild hyperthyroid symptoms. Examination reveals a tender thyroid gland. TSH is 0.1 mIU/L, free T4 is elevated at…
A 28-year-old woman at 8 weeks gestation presents for prenatal screening. Her TSH is 0.2 mIU/L (normal pregnancy range: 0.1–2.5) and free T4 is normal. She has no symptoms of thyro…
A 35-year-old woman presents with a 2-month history of heat intolerance, palpitations, and a 4 kg unintentional weight loss despite increased appetite. On examination, she has a fi…
A 68-year-old man with chronic atrial fibrillation on warfarin presents with fatigue, weight loss, and heat intolerance. TSH is suppressed at 0.08 mIU/L and free T4 is elevated at …
A 17-year-old boy with type 1 diabetes mellitus on insulin therapy presents with fasting morning glucose levels of 280 mg/dL. His endocrinologist requests 3 AM glucose checks, whic…
A 13-year-old boy presents with polyuria, polydipsia, and nocturia over 2 months with 4-kg weight loss. Vital signs show BP 118/76 mmHg, HR 92 bpm, RR 18/min, temperature 37.2°C, a…
A 54-year-old obese man with hypertension and dyslipidemia presents with fatigue. Vital signs show BP 148/92 mmHg, HR 88/min, RR 16/min, temperature 37°C, and SpO2 98% on room air.…