Asthma 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 · hard1. A 32-year-old man presents with a 3-month history of progressive dyspnea on exertion. He denies chest pain, fever, or recent infections. Vital signs are normal. Chest examinatio…
- USMLE Step 1 · medium2. A 6-year-old boy is brought to the emergency department by his mother with a 2-hour history of acute dyspnea and wheezing. He was playing outside during high pollen season when…
- USMLE Step 1 · medium3. A 42-year-old woman with a 3-year history of intermittent asthma presents to occupational medicine clinic. She works as a quality control technician at a chemical manufacturing…
- USMLE Step 1 · medium4. A 6-year-old boy presents with acute asthma exacerbation. Vitals: HR 128/min, RR 32/min, BP 105/68 mmHg, SpO₂ 89% on supplemental oxygen, temperature 37.2°C. He receives continu…
- USMLE Step 1 · hard5. A 19-year-old male university student reports that his asthma symptoms worsen during exams and times of emotional stress. He uses his rescue inhaler 2-3 times weekly during high…
- USMLE Step 1 · hard6. A 34-year-old woman with a 12-year history of moderate persistent asthma presents to the emergency department with acute-onset severe dyspnea, unilateral left pleuritic chest pa…
- USMLE Step 1 · medium7. A 45-year-old woman with newly diagnosed asthma presents for evaluation of recurrent symptoms over the past 2 months. She reports wheezing and dyspnea triggered by exposure to a…
- USMLE Step 1 · medium8. A 28-year-old man with well-controlled asthma on low-dose inhaled corticosteroid presents with persistent nocturnal cough and awakening 4 nights per week due to wheezing. Vital…
- USMLE Step 1 · easy9. A 7-year-old boy with no prior respiratory disease presents to the emergency department with acute onset dyspnea and bilateral wheezing that began 10 minutes after sprinting dur…
- USMLE Step 1 · easy10. A 19-year-old woman presents with episodic cough, wheezing, and chest tightness worsening with exercise and seasonal pollen exposure. Current vital signs show BP 118/76, HR 102,…
- USMLE Step 1 · medium11. A 14-year-old boy with persistent allergic asthma is started on daily inhaled budesonide plus albuterol rescue inhaler. One month later, he presents with white plaques on the to…
- USMLE Step 1 · medium12. A 33-year-old man with newly diagnosed pulmonary tuberculosis (CXR: upper lobe infiltrates) started on rifampin, isoniazid, pyrazinamide, and ethambutol presents with numbness a…
- USMLE Step 1 · hard13. A 7-year-old boy recently immigrated with his family is found to have a new positive tuberculin skin test during school screening. He is asymptomatic. Chest radiograph shows a c…
- USMLE Step 1 · medium14. A 42-year-old man from a tuberculosis-endemic region presents with one month of persistent cough, night sweats, and 8-lb weight loss. He reports intermittent hemoptysis but deni…
- USMLE Step 1 · medium15. A 52-year-old obese man presents with loud snoring, witnessed apneas during sleep, and excessive daytime sleepiness. He reports morning headaches and denies asthma or reactive a…
- USMLE Step 1 · hard16. A 35-year-old woman has progressive exertional dyspnea, fatigue, and one episode of syncope while climbing stairs. Examination shows a loud P2 and signs of right ventricular str…
- USMLE Step 1 · hard17. A 31-year-old woman in active labor develops sudden severe dyspnea, hypotension (BP 88/52), tachycardia (HR 128), and altered mental status. Vital signs show tachypnea (RR 32) a…
- USMLE Step 1 · medium18. A 24-year-old man undergoes repair of a femoral shaft fracture after a motor vehicle collision. Two days postoperatively, he develops acute dyspnea, confusion, and a petechial r…
- USMLE Step 1 · hard19. A 43-year-old woman presents with acute-onset pleuritic chest pain and dyspnea 4 days after pelvic surgery. Vital signs reveal HR 118 bpm, RR 28/min, BP 132/84 mmHg, SpO2 88% on…
- USMLE Step 1 · hard20. A 66-year-old man presenting with cough and dyspnea has vital signs: BP 138/88, HR 92, RR 18, SpO2 92% on room air. CT chest reveals a 3.4 cm spiculated right upper lobe nodule…
- USMLE Step 1 · medium21. A 60-year-old male with a 40-pack-year smoking history presents with severe right shoulder pain radiating to the medial forearm and fourth and fifth digits. Physical examination…
- USMLE Step 1 · medium22. A 58-year-old man with a 40-pack-year smoking history presents with progressive dyspnea on exertion and difficulty climbing stairs. Vital signs show BP 142/88 mmHg, HR 102 bpm,…
- USMLE Step 1 · medium23. A 67-year-old man with a 50 pack-year smoking history presents with persistent cough, hemoptysis, and 8-pound weight loss over two months. Vital signs show BP 138/86, HR 92, RR…
- USMLE Step 1 · medium24. A 61-year-old never-smoker woman presents with progressive cough and 8-pound weight loss over 3 months. Vital signs: BP 128/76, HR 92, RR 18, Temp 98.6°F, SpO2 98% on room air.…