Bacterial Infections USMLE Step 1 Practice Questions
58 board-style USMLE Step 1 questions in Infectious Disease. Each question shows the correct answer; create a free account for the full explanation and adaptive practice.
- USMLE Step 1 · medium49. A 29 year old man is brought to the hospital after a motorcycle crash. He sustained a deep contaminated thigh wound. Twelve hours later he develops severe pain out of proportion…
- USMLE Step 1 · medium50. A 3 month old boy is brought to clinic for poor feeding, weak cry, constipation, and progressive lethargy. His parents recently began giving him small amounts of honey for cough…
- USMLE Step 1 · easy51. A 52 year old man comes to the emergency department with jaw stiffness and painful muscle spasms 8 days after stepping on a rusty nail while working on a farm. He has not receiv…
- USMLE Step 1 · medium52. A 34 year old man who works processing imported animal hides presents with fever, dyspnea, and chest discomfort. Chest radiograph shows a widened mediastinum and pleural effusio…
- USMLE Step 1 · medium53. A 71-year-old man presents with fever (38.9°C), malaise, and a new cardiac murmur. Vital signs show BP 128/76, HR 104, RR 18, SpO2 98% on room air. Blood cultures grow group D,…
- USMLE Step 1 · medium54. A 46 year old man with a history of mitral valve prolapse presents with 3 weeks of low grade fevers, fatigue, and weight loss. He underwent a dental extraction 1 month ago. Exam…
- USMLE Step 1 · medium55. A 58 year old man with a history of splenectomy after trauma presents with fever, productive cough, and pleuritic chest pain. Temperature is 39 C (102.2 F). Chest radiograph sho…
- USMLE Step 1 · easy56. A 21 year old sexually active woman comes to clinic with dysuria, urinary frequency, and suprapubic discomfort for 2 days. She has no fever or flank pain. Urinalysis shows posit…
- USMLE Step 1 · easy57. A 68 year old woman presents with 1 week of low grade fever and malaise. Two months ago she underwent prosthetic aortic valve replacement. Temperature is 38.1 C (100.6 F). Cardi…
- USMLE Step 1 · easy58. A 27 year old man is brought to the emergency department with fever and pleuritic chest pain for 3 days. He injects heroin daily. Temperature is 39.4 C (102.9 F), blood pressure…