Pft Exam 2 Questions With 100% Correct Answers

PFT EXAM 2 QUESTIONS WITH 100% CORRECT ANSWERS True or false: when performing a He dilution study, the FRC may be underestimated in a pt w/ severe obstruction - Correct Answer-trueTrue or false: a pt w/ polycythemia will have a falsely low DLCO? - Correct Answer-falseTrue or false: DLCO is often measured prior to and during treatment for certain drugs such as bleomycin and amiodarone, to check for toxicity - Correct Answer-truewhich of the following statements are true regarding FEF 25-75% (choose more than one)I. it is sensitive to early changes in Obst. lung diseaseII it is the best indicator for pt effortIII. it is the measurement of the smaller AW'sIV. it is the main measurement to evaluate bronchodilator response - Correct Answer-I, IIITrue or False: when performing a nitrogen washout study. If the patient. fails to have their nitrogen reach as low as 1.5% even after 7 min. It is significant for severe Obst. and air trapping - Correct Answer-truewhich of the following will result in a decrease in compliance (choose more than one)I. edemaII. emphysemaIII. atelectasisIV. pneumonia - Correct Answer-I. edema, III. atelectasisIV. pneumoniawhat is the expected FEV1/FVC ratio for a normal healthy adult? - Correct