Mycology/Parasitology USMLE Step 1 Practice Questions
55 board-style USMLE Step 1 questions in Microbiology/Immunology. Each question shows the correct answer; create a free account for the full explanation and adaptive practice.
- USMLE Step 1 Ā· hard25. A 29-year-old woman with type 2 diabetes presents with a painful, draining foot ulcer. Vital signs show temperature 38.2Ā°C, heart rate 102/min, blood pressure 128/82 mmHg, and oā¦
- USMLE Step 1 Ā· medium26. A 45-year-old construction worker from Arizona presents with 2-week fever (38.5Ā°C), productive cough, and erythema nodosum. Vitals show HR 102 bpm, RR 22, SpO2 98% on room air.ā¦
- USMLE Step 1 Ā· medium27. A 34-year-old woman with untreated HIV (CD4 200 cells/Ī¼L) presents with progressive dyspnea, fever, and a nonproductive cough for 3 weeks. Chest imaging shows bilateral interstiā¦
- USMLE Step 1 Ā· medium28. A 4-year-old from rural Mexico presents with progressive abdominal distension, malnutrition, and pallor. Vital signs: HR 115, RR 24, BP 95/60. Laboratory studies show hemoglobinā¦
- USMLE Step 1 Ā· hard29. A 34-year-old woman from Brazil presents with fever (38.2Ā°C), multiple ulcerated lesions on her lip and face, and enlarged regional lymph nodes. Vital signs show BP 118/76, HR 9ā¦
- USMLE Step 1 Ā· easy30. A 42-year-old man with a 3-week history of cough presents for follow-up after a positive tuberculin skin test (induration 15 mm). He is currently asymptomatic with vital signs:ā¦
- USMLE Step 1 Ā· medium31. A 45-year-old man from the southwestern United States presents with fever, weight loss, and cough productive of blood. Chest X-ray reveals a solitary cavitary lesion in the righā¦
- USMLE Step 1 Ā· medium32. A 32-year-old woman with newly diagnosed HIV presents with dyspnea, fever (38.5Ā°C), and nonproductive cough for 2 weeks. Vital signs show BP 110/68, HR 102, RR 24, SpO2 88% on rā¦
- USMLE Step 1 Ā· medium33. A 40-year-old immunocompetent woman presents with a 3-week history of progressive nodular lymphangitis along her left arm following a gardening injury. She has a small, painlessā¦
- USMLE Step 1 Ā· medium34. A 28-year-old woman with poorly controlled diabetes (HbA1c 12.2%) presents with fever (39.1Ā°C), facial pain, and black necrotic tissue involving her hard palate and nasal sinuseā¦
- USMLE Step 1 Ā· medium35. A 45-year-old man from the San Joaquin Valley presents with a 6-week history of chronic cough and pleuritic chest pain. Vital signs show temperature 38.2Ā°C, blood pressure 128/8ā¦
- USMLE Step 1 Ā· easy36. A 32-year-old woman with HIV/AIDS and CD4 count of 28 cells/Ī¼L presents with fever (39.2Ā°C), headache, and neck stiffness for 1 week. Vital signs show BP 110/68 mmHg, HR 98/min,ā¦
- USMLE Step 1 Ā· easy37. A 55-year-old woman with poorly controlled diabetes (HbA1c 10.2%) presents with a painful black eschar on her nasal bridge and palate. Vital signs show temperature 38.9Ā°C, heartā¦
- USMLE Step 1 Ā· hard38. A 9-year-old boy from Nigeria with sickle cell disease presents with fever (38.9Ā°C), productive cough, and pleuritic chest pain. Vital signs show HR 112, RR 24, BP 105/68, SpO2ā¦
- USMLE Step 1 Ā· hard39. A 19-year-old college student presents with severe frontal headache, neck stiffness, and altered mental status for 3 days. Vital signs show temperature 38.9Ā°C, BP 118/76, HR 102ā¦
- USMLE Step 1 Ā· medium40. A 68-year-old man with remote pulmonary tuberculosis presents with hemoptysis, fever (38.2Ā°C), and tachycardia (HR 102). Vital signs show BP 138/82, RR 22, SpO2 94% on room air.ā¦
- USMLE Step 1 Ā· medium41. A 45-year-old man with COPD presents with hemoptysis and fever (38.2Ā°C). Vital signs show BP 128/82, HR 98, RR 22, SpO2 88% on room air. Chest X-ray reveals a cavitary lesion inā¦
- USMLE Step 1 Ā· medium42. A 32-year-old woman with poorly controlled diabetes (HbA1c 11.2%) presents with facial edema, proptosis, and black necrotic tissue on her hard palate. Vital signs show BP 138/82ā¦
- USMLE Step 1 Ā· hard43. A 68-year-old man with COPD and prior pulmonary tuberculosis presents with hemoptysis and dyspnea. Vitals: BP 138/82, HR 92, RR 22, Temp 37.2Ā°C, SpO2 88% on room air. High-resolā¦
- USMLE Step 1 Ā· medium44. A 7-year-old boy with no significant past medical history presents with a single pruritic, scaly lesion on his arm. He recently returned from a farm visit where he played with kā¦
- USMLE Step 1 Ā· easy45. A 45-year-old man presents with severe pruritus and maceration between his toes for 3 weeks. He works construction in occlusive boots 10 hours daily. Vital signs: BP 128/82, HRā¦
- USMLE Step 1 Ā· medium46. A 52-year-old woman with poorly controlled diabetes (HbA1c 11.2%) presents with severe facial pain, fever (39.2Ā°C), and black necrotic tissue involving the maxillary sinus and hā¦
- USMLE Step 1 Ā· medium47. A 42-year-old man with a history of smoking and COPD presents with hemoptysis and a cavitary lesion in the lung. Culture of sputum grows a dimorphic fungus that appears as a molā¦
- USMLE Step 1 Ā· medium48. A 28-year-old immunocompromised man with CD4 count of 45 cells/Ī¼L presents with severe frontal headache, fever, and neck stiffness. Lumbar puncture shows elevated protein (180 mā¦