Exam (elaborations) NURSING NURSE2113

Exam (elaborations) NURSING NURSE2113 ,A subject who complains of shortness of breath has an FVC of 2.57 L, but her VC is 2.99 L. These findings suggest which of the following? 2. A 47-year-old man with a history of cough has the following spirometry results: Measured Predicted FVC (L BTPS) 3.85 4.01 FEV1 (L BTPS) 2.14 3.33 These findings show the presence of which of the following? a. Reversible airway obstruction b. Moderate obstructive disease c. Normal lung function d. Incorrectly selected predicted values 3. A 22-year-old patient with dyspnea performs three spirometry trials. Trial 1 Trial 2 Trial 3 FVC (L BTPS) 4.21 4.49 4.65 FEV1 (L BTPS) 3.88 3.91 3.93 The pulmonary function technologist should do which of the following? a. Report the values from Trial 3. b. Report the largest sum of FVC and FEV1. c. Average the data from Trials 2 and 3. d. Perform at least one more maneuver. 4. Why should all values from a series of peak flow measurements be reported? a. PEF may decrease with repeated efforts. b. A minimum of three values must be averaged. c. Peak flowmeters do not need to be precise. d. Forced exhalation produces a bronchodilator effect. Which of the following determines the shape of the “effort-independent” portion of the expiratory F-V curve? 6. A patient being evaluated for disability has the following spirometry results: Measured Predicted FVC (L) 4.00 4.10 FEV1 (L) 2.00 3.30 MVV (L/min) 105 110 What do these findings indicate? a. The patient has moderate obstructive disease. b. The patient has restriction. c. The patient’s FEV1 is larger than measured. d. The patient did not make a good effort on the MVV. 8. Which answer is consistent with the following flow-volume curve? a. Normal forced expiratory flow pattern b. Variable intrathoracic obstruction c. Airways obstruction d. Fixed large airway obstruction 9. A subject has spirometry repeated before and after inhaled bronchodilators. The following data are obtained: Predicted Before Drug After Drug FVC 5.20 4.90 5.30 FEV1 4.10 3.10 3.30 PEF 9.20 7.77 8.92 Which of the following statements best describes these findings? a. There is mild obstruction with significant response to bronchodilators. b. There is mild obstruction without significant change after bronchodilators. c. There is a paradoxical response to bronchodilators. d. Spirometry is within normal limits. A 50-year-old woman with dyspnea has the following spirometry results: Measured Predicted FVC (L BTPS) 3.99 4.10 FEV1 (L BTPS) 3.44 3.33 These findings are consistent with which of the following? a. Reversible airway obstruction b. Mild obstructive disease c. Normal lung function d. Invalid predicted values A 17-year-old patient with asthma performs three spirometry trials: Trial 1 Trial 2 Trial 3 FVC (L BTPS) 3.21 3.44 3.49 FEV1 (L BTPS) 2.88 2.91 2.93 The pulmonary function technologist should do which of the following? a. Report the values from Trial 3. b. Average the data from Trials 2 and 3. c. Calibrate the spirometer and repeat all three trials. d. Perform at least one more maneuver. A subject being tested for possible environmental exposure to asbestos produces the following spirometry results: Measured Predicted FVC (L) 4.00 4.07 FEV1 (L) 3.44 3.37 MVV (L/min) 52 135 The pulmonary function technologist may conclude that: a. The patient has restriction. b. The patient has moderate obstructive disease. c. The patient’s FEV1 is not valid. d. The patient did not make a good effort on the MVV. 13. Which of the following diagnoses is consistent with the following flow-volume curve? a. Variable intrathoracic obstruction b. Fixed extrathoracic obstruction c. Small airway obstruction d. Normal expiratory and inspiratory flows a. 1, 3, and 4 b. 2 and 3 c. 1 and 4 d. 2 only 16. A subject produces the following simple spirometry results: Measured Predicted FVC (L, BTPS) 4.5 4.0 FEV1 (L, BTPS) 3.6 3.2 These findings are consistent 17. A subject referred for pulmonary function tests because of shortness of breath has an FEV1 of 98%. This finding is suggestive of: a. Restrictive lung disease b. Obstructive lung disease c. Normal lung function d. Upper airway abnormality 18. The FEF25%-75% depends on which of the following? a. FVC b. PEF c. FEV1 d. FEV1%