RCP 180 STUDY QUESTIONS AND ANSWERS

Which substance is a known substitute for Methacholine? correct answer: Histamine True or False? Raw and sGaw are excellent indicators of an obstructive Disorder? correct answer: True True or False? sGaw is usually better indicator of Restrictive disorder than Raw. correct answer: False True or False? sGaw may actually be a more sensitive test of obstruction than FEV1/FVC. correct answer: True (FEV1/FVC are always constant whereas conductance is more sensitive to changes) True or False? You could determine an obstructive disorder only using FEV1/FVC ratio. correct answer: True (Gold standard) True or False? The maximum amount of additional air that can be drawn into the lungs by determined effort after normal inspiration is the definition of Inspiratory capacity. correct answer: False True or False? Pulmonary hypertension is usually indicative of a low DLCO. correct answer: True When we look at RV/TLC and FEV1/FVC, which set of numbers do we interpret? correct answer: Observed/Actual To judge the effects of a bronchodilator, which numbers should you use to assess? correct answer: FEV1 Which disorder would you most likely see defined coving on a Flow Volume loop? Chest Wall ILD PVD Asthma correct answer: Asthma When there is a huge A-a gradient, which PFT measurement is usually decreased? correct answer: DLCO (Inverse to A-a gradient) The amount of air that can be inhaled after the end of a normal expiration is? correct answer: IC The additional amount of air that can be expired from the lungs by determined effort after normal expiration is? correct answer: ERV