[March-2026]

Case Study:

John, a 60-year-old man, presents to his pulmonologist with complaints of worsening shortness of breath and chronic cough over the past year. He has a 30 pack-year history of smoking and reports increased sputum production. On physical examination, decreased breath sounds and prolonged expiratory phase are noted. Pulmonary function tests, including spirometry, are ordered to assess his lung function.

Which spirometry parameter is most indicative of airflow obstruction in chronic obstructive pulmonary disease (COPD)?

A) Forced vital capacity (FVC)
B) Forced expiratory volume in 1 second (FEV1) ✅
C) Total lung capacity (TLC)
D) Residual volume (RV)

✔ Correct Answer: B) Forced expiratory volume in 1 second (FEV1)

A 45-year-old female presents to her primary care physician with complaints of pain and swelling in her left leg. She reports that the symptoms started a few days ago and have been progressively worsening. She denies any recent trauma or injury to the area. She has a past medical history significant for obesity and oral contraceptive use. On physical examination, there is unilateral calf swelling with tenderness and erythema. The patient’s vital signs are within normal limits.

Which diagnostic test is considered the gold standard for diagnosing deep vein thrombosis (DVT)?

A) Venous doppler ultrasound ✅
B) D-dimer assay
C) Magnetic resonance imaging (MRI)
D) Arterial doppler ultrasound

✔ Correct Answer: A) Venous doppler ultrasound

Which of the following statements regarding Tuberculin skin testing (TST) is true?

A) A positive TST indicates active tuberculosis (TB) infection.
B) TST measures the presence of Mycobacterium tuberculosis in the bloodstream.
C) A positive TST indicates exposure to TB bacteria, but it does not distinguish between latent infection and active disease. ✅
D) TST results are not affected by prior Bacillus Calmette-Guérin (BCG) vaccination.

✔ Correct Answer: C) A positive TST indicates exposure to TB bacteria, but it does not distinguish between latent infection and active disease.

When considering cardiac stress testing, which of the following scenarios best indicates when it is appropriate to perform a chemical stress test rather than an exercise stress test?

A) When evaluating overall cardiovascular fitness in a healthy individual.
B) When assessing the effectiveness of medication in controlling cholesterol levels.
C) When determining the presence and extent of coronary artery disease in a patient unable to exercise due to physical limitations. ✅
D) When monitoring heart rate variability in athletes during intense training sessions.

✔ Correct Answer: C) When determining the presence and extent of coronary artery disease in a patient unable to exercise due to physical limitations…………………………………………….$purchase the 30 questions and answers at $20 only