Behavioral Science & Ethics USMLE Step 1 Practice Questions
76 board-style USMLE Step 1 questions in Biostatistics & Behavioral Science. Each question shows the correct answer; create a free account for the full explanation and adaptive practice.
- USMLE Step 1 · medium25. A 72-year-old man with stage IV pancreatic cancer and progressive cognitive decline from brain metastases is admitted to the hospital with sepsis. He is currently alert but incr…
- USMLE Step 1 · medium26. A 62-year-old man with symptomatic heart failure is enrolled in a randomized controlled trial comparing a novel ACE inhibitor (Drug A) to standard therapy (Drug B). He is random…
- USMLE Step 1 · medium27. A 45-year-old woman with newly diagnosed type 2 diabetes mellitus is counseled about lifestyle modifications. She expresses strong belief that her condition is due to "bad luck"…
- USMLE Step 1 · medium28. A 55-year-old man with a 20-year history of alcohol use disorder completes a 30-day inpatient rehabilitation program. Six months later, he maintains continuous abstinence verifi…
- USMLE Step 1 · medium29. A 28-year-old woman with borderline personality disorder presents with chronic emptiness, unstable relationships with rapid idealization-devaluation cycles, and recurrent self-h…
- USMLE Step 1 · hard30. A prospective randomized controlled trial evaluates a novel laparoscopic technique for cholecystectomy compared to open surgery. The study enrolls 200 patients from a single ter…
- USMLE Step 1 · easy31. A 40-year-old man with moderate depression (PHQ-9 score 16) is prescribed sertraline 50 mg daily. After one week, he reports worsening mood and anxiety, with HR 92 bpm and mild…
- USMLE Step 1 · medium32. A 62-year-old man with stage IV pancreatic cancer (CA 19-9 elevated at 1,240 U/mL) presents with weight loss and jaundice. Vitals: BP 118/76, HR 92, RR 16, Temp 37°C, SpO2 98% o…
- USMLE Step 1 · medium33. A 35-year-old woman presents 3 months after sexual assault with recurrent intrusive memories, avoidance of trauma reminders, persistent negative mood, and hypervigilance. Vital…
- USMLE Step 1 · easy34. A 52-year-old man with newly diagnosed type 2 diabetes attends a nutrition counseling session. The counselor explains dietary modifications and prescribes a detailed meal plan.…
- USMLE Step 1 · medium35. A 28-year-old man with no prior psychiatric history is admitted to the psychiatric unit with acute-onset psychosis manifesting as command hallucinations and paranoid delusions.…
- USMLE Step 1 · medium36. A 45-year-old woman with a past medical history of major depressive disorder presents to her primary care physician with a 3-month history of fatigue and insomnia. She reports s…
- USMLE Step 1 · hard37. A 52-year-old cardiologist sees an average of 15 patients daily with hypertension. Over the past year, she has prescribed antihypertensive medications from Pharmacos Inc. in 60%…
- USMLE Step 1 · medium38. A 72-year-old woman with stage IV pancreatic cancer presents to clinic for follow-up. She has progressive weight loss (albumin 2.8 g/dL) and mild dysphagia but denies pain. Her…
- USMLE Step 1 · easy39. A 55-year-old man with hypertension (BP 168/96 mmHg, HR 82) enrolled in an antihypertensive medication trial develops erectile dysfunction after initiation of study drug. He bec…
- USMLE Step 1 · medium40. A 19-year-old male college student with cystic fibrosis presents to his pulmonologist with a 2-week history of productive cough, fever, and dyspnea. Spirometry shows FEV1 of 62%…
- USMLE Step 1 · medium41. A phase III randomized controlled trial is comparing a novel minimally invasive surgical technique to standard open repair for ventral hernia. The trial was designed to enroll 8…
- USMLE Step 1 · medium42. A 28-year-old unmarried woman with no children presents to her primary care physician requesting surgical sterilization. Vital signs are normal (BP 118/76, HR 72, RR 14, Temp 98…
- USMLE Step 1 · medium43. A 67-year-old man with advanced dementia and multiple comorbidities presents to the emergency department with fever (38.9°C), tachycardia (HR 102), tachypnea (RR 28), and hypoxe…
- USMLE Step 1 · medium44. A 32-year-old man with a history of hypertension enrolls in a randomized controlled trial comparing a new antihypertensive agent to standard care. He is randomized to the contro…
- USMLE Step 1 · medium45. A 45-year-old woman with newly diagnosed stage II breast cancer (ER/PR positive, HER2 negative on immunohistochemistry) presents to her oncologist. Vitals are stable: BP 128/82,…
- USMLE Step 1 · hard46. A 35-year-old woman presents to her primary care physician with a blood pressure of 162/98 mmHg. She has no prior history of hypertension and denies headaches, chest pain, or dy…
- USMLE Step 1 · medium47. A 67-year-old woman with moderate-to-advanced Alzheimer disease is admitted to the hospital with aspiration pneumonia and acute hypoxic respiratory failure. She is currently int…
- USMLE Step 1 · medium48. A 19-year-old woman presents to urgent care 18 hours after unprotected intercourse and requests emergency contraception. She is hemodynamically stable, denies gynecologic surger…