Pulmonary Embolism USMLE Step 1 Practice Questions
55 board-style USMLE Step 1 questions in Pulmonology. Each question shows the correct answer; create a free account for the full explanation and adaptive practice.
- USMLE Step 1 · easy25. A 72-year-old woman with advanced emphysema is found unresponsive at home. Vital signs: BP 88/54, HR 118, RR 28, SpO2 75% on room air. Arterial blood gas reveals pH 7.20, pCO2 7…
- USMLE Step 1 · medium26. A 45-year-old woman with metastatic lung cancer presents to the emergency department with acute onset dyspnea and pleuritic chest pain over 2 days. She has been hospitalized for…
- USMLE Step 1 · medium27. A 68-year-old man with COPD and hypertension presents to the emergency department with acute dyspnea, tachycardia, and hypoxemia two days after undergoing open reduction and int…
- USMLE Step 1 · easy28. A 32-year-old woman on oral contraceptives presents with acute dyspnea and pleuritic chest pain. Vital signs show HR 112 bpm, BP 128/82 mmHg, RR 22/min, SpO2 88% on room air, an…
- USMLE Step 1 · hard29. A 72-year-old man with a 15-year history of COPD (baseline FEV1 28% predicted) presents to the emergency department with acute dyspnea and pleuritic chest pain that began 2 hour…
- USMLE Step 1 · medium30. A 35-year-old woman with nephrotic syndrome hospitalized on bed rest for one week presents with acute dyspnea and pleuritic chest pain. Vital signs show BP 128/82, HR 102, RR 22…
- USMLE Step 1 · easy31. A 68-year-old woman is admitted to the hospital following surgical repair of an intertrochanteric hip fracture. On postoperative day 3, she develops acute onset dyspnea and shar…
- USMLE Step 1 · hard32. A 44-year-old man with an unprovoked deep vein thrombosis and subsequent pulmonary embolism is found to have a Factor V Leiden mutation on hypercoagulability testing. He is hete…
- USMLE Step 1 · medium33. A 63-year-old woman with confirmed submassive PE (stable hemodynamics, RV strain on echo, elevated troponin) is being monitored in the ICU. Six hours after admission, her systol…
- USMLE Step 1 · medium34. A 56-year-old man with acute PE (CT pulmonary angiography positive for right lower lobe segmental thrombus) is started on therapeutic enoxaparin. Vitals: BP 128/82, HR 102, RR 1…
- USMLE Step 1 · hard35. A 72-year-old man with confirmed PE has a serum troponin I level of 0.8 ng/mL (normal < 0.04) and a BNP of 650 pg/mL (normal < 100). His blood pressure is 118/72 mmHg and heart…
- USMLE Step 1 · easy36. A 38-year-old woman presents with acute dyspnea and pleuritic chest pain after a 12-hour international flight. Vital signs: BP 128/82, HR 102, RR 22, SpO2 91% on room air, tempe…
- USMLE Step 1 · medium37. A 48-year-old woman presents with acute dyspnea, tachycardia (HR 112/min), and tachypnea (RR 22/min). CT pulmonary angiography confirms pulmonary embolism. Vital signs: BP 128/8…
- USMLE Step 1 · medium38. A 50-year-old woman with acute pulmonary embolism (confirmed on CT pulmonary angiography) presents with dyspnea, tachycardia (HR 108/min), and tachypnea (RR 22/min). She is init…
- USMLE Step 1 · easy39. A 42-year-old man with no prior thromboembolism presents with acute pleuritic chest pain and dyspnea. Vital signs show BP 138/82, HR 118, RR 22, SpO2 88% on room air, and temper…
- USMLE Step 1 · hard40. A 60-year-old man with known PE on anticoagulation presents 3 months later with progressive exertional dyspnea despite therapeutic anticoagulation. Echocardiography shows a righ…
- USMLE Step 1 · medium41. A 70-year-old man with unprovoked pulmonary embolism 6 months ago currently takes apixaban. He presents with HR 88 bpm, BP 138/82 mmHg, RR 16, SpO2 98% on room air, and afebrile…
- USMLE Step 1 · medium42. A 28-year-old woman at 30 weeks of gestation presents with sudden dyspnea and pleuritic chest pain. Vital signs show HR 108 bpm, BP 118/76 mmHg, RR 22/min, SpO2 93% on room air,…
- USMLE Step 1 · medium43. A 55-year-old woman with a history of unprovoked pulmonary embolism presents with acute dyspnea and chest pain. Vital signs: BP 128/82 mmHg, HR 102/min, RR 22/min, SpO2 92% on r…
- USMLE Step 1 · hard44. A 67-year-old man with metastatic prostate cancer on active chemotherapy presents with acute dyspnea and unilateral left leg swelling. Vitals show HR 108 bpm, RR 24/min, BP 138/…
- USMLE Step 1 · hard45. A 45-year-old man is brought to the emergency department with severe dyspnea, diaphoresis, and syncope. His blood pressure is 72/48 mmHg, heart rate is 130 bpm, and oxygen satur…
- USMLE Step 1 · easy46. A 32-year-old woman taking oral contraceptive pills presents with acute dyspnea, chest pain, and tachycardia. Vital signs: BP 128/82 mmHg, HR 110 bpm, RR 22/min, SpO2 94% on roo…
- USMLE Step 1 · medium47. A 58-year-old woman presents to the emergency department with sudden onset dyspnea and pleuritic chest pain 5 days after total knee replacement surgery. Her heart rate is 112 bp…
- USMLE Step 1 · hard48. A 69 year old man with metastatic colon cancer suddenly collapses. Blood pressure is 76 over 44 mm Hg, pulse is 132 per minute, and jugular venous pressure is elevated. Lungs ar…