PFT exam| 70 questions| with complete solutions

Which of the following are indications for assessing pulmonary function? 1. Screen for pulmonary disease. 2. Evaluate patients for surgical risk. 3. Assess the progression of disease. 4. Assist in diagnosing cardiac disability. correct answer: 1. Screen for pulmonary disease. 2. Evaluate patients for surgical risk. 3. Assess the progression of disease. Which of the following are considered relative contraindications for lung volume determinations? 1. Recent cataract removal surgery 2. Unstable cardiovascular status 3. Treated pneumothorax 4. Hemoptysis of unknown origin correct answer: 1. Recent cataract removal surgery 2. Unstable cardiovascular status 4. Hemoptysis of unknown origin What is the primary problem in obstructive lung disease? correct answer: Increased airway resistance Which of the following measure is typically increased in patients with restrictive lung disease? correct answer: Pressure needed to expand the lung You perform a series of pulmonary function tests on a patient with a potentially infectious disease carried via the airborne route. Which of the following infection-control procedures should you implement? 1. Wear a respirator or close-fitting surgical mask. 2. Dispose of, sterilize, or disinfect the tubing circuit after testing. 3. Clean the interior surface of the spirometer before the next test. correct answer: 1. Wear a respirator or close-fitting surgical mask. 2. Dispose of, sterilize, or disinfect the tubing circuit after testing. Which of the following pulmonary function devices directly collect and measure gas volumes? 1. Water-sealed spirometer 2. Dry rolling-seal spirometer 3. Bellows spirometer 4. Pneumotachometer correct answer: 1. Water-sealed spirometer 2. Dry rolling-seal spirometer 3. Bellows spirometer To what does the range or limit of a device's measuring ability refer? correct answer: Capacity How closely a device measures a certain reference value r