1)When preparing methacholine dilutions for the doubling protocol from 100 mg of dry powder, which of the following would yield a dilution of 4

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1)When preparing methacholine dilutions for the doubling protocol

from 100 mg of dry powder, which of the following would yield a dilution of 4.0 mg/ml?
options:


A. 3 ml of 16.0 mg/ml          


B. 3 ml of 8.0 mg/ml          


C. 3 ml of 4.0 mg/ml          


D. 3 ml of 2.0 mg/ml
2.An exercise bronchoprovocation test was completed on a 45-year-old male. The FEV1 decreased 18% post-exercise. The technologist should explain that this change is related to:
options:


A. Release of mediators from inflammatory cells


B. A direct response of the airway smooth muscle to exercise


C. An exercise-induced increase in the number of inflammatory cells          


D. A decrease in water loss from the airways  


3.Which of the following patients would be at greatest risk for postoperative complications after a lung resection?
options:


A. A patient with FEV1 of 1.65 L


B. A patient with MVV of 74% of predicted


C. A patient with PaCO2 of 35 mm Hg


D. A patient with O2max of 9 ml/min/kg


4.An indirect calorimetry system uses a dilution technique that mixes a constant flow of entrained air with expired gas. This technique allows determination of which of the following?
options:


A. ventilation


B. End-tidal CO2


C. VD/VT


D. FEO2


5.A patient has a metabolic study performed with the following results:
vO2300 ml/min ,vCO2270 ml/min  
If the patient's 24-hour urinary nitrogen (UN) is 22 g/24 hours, what is the approximate REE?
options:


A. 480 kcal/24 hours          


B. 2084 kcal/24 hours          


C. 2132 kcal/24 hours          


D. 2666 kcal/24 hours          


6.The number of complete pulmonary function tests that can be permanently stored by a computer depends on which of the following?
options:


A. Whether the computer uses PROMs or EPROMs


B. The amount of RAM available (im megabytes)


C. The presence of a built-in CD-ROM device


D. The capacity of the hard disc


7.A patient has an eucapnic voluntary hyperventilation (EVH) test to evaluate bronchial hyperreactivity. If the subject's FEV1 is 3.3 L and her FVC is 4.0 L, which of the following is the appropriate target ventilation for this test?
options:


A. 50 times the FEV1 for 1 minute


B. 30 times the FEV1 for 6 minute


C. 2 times the FEV1 for 6 minute


D. Cannot be determined without the MVV