RPFT Exam Question No 40

Question No 40:

A pulmonary function technologist is reviewing an asthma action plan. The patient takes a low-dose inhaled corticosteroid and a long-acting beta2-agonist twice daily. The patient's personal best peak flow is 600 L/min. Which of the following instructions should be given to the patient when the peak flow drops to 500 L/min?

A. Add montelukast (Singular).
B. Continue the current regimen.
C. Go to the emergency department.
D. Double the steroid dose.

Answer: A

RPFT Exam Question No 39

Question No 39:

An isothermal lung analog has the following specifications:

5-L glass bottle
2000 g of steel wool
Density of steel wool 5 g/cm3

Volume of connectors and bulb 100 mi-Repeated FRC measurements in the plethysmograph
result in a volume of 5.5 L. Which of the following should a pulmonary function technologist
do?

A. Remove 500 g ofsteel wool from the lung analog
B. Take the plethysmograph out of service
C. Recalculate the BTPS correction
D. Begin a biologic control program

Answer: D

RPFT Exam Question No 38

Question No 38:

Which of the following problems may be identified by using an isothermal lung analog to perform quality control on a body plethysmograph?

1. 1.Improperly calibrated mouth pressure transducer
2. 2.Obstructed or perforated pneumotachometer
3. 3.Increase in mechanical resistance
4. 4.Malfunctioning box pressure transducer

A. 3 and 4 only
B. 2 and 3 only
C. 1 and 4 only
D. 1 and 2 only

Answer: C

RPFT Exam Question No 37

Question No 37:

While performing duplicate blood gas analyses, a pulmonary function technologist notes that the second instrument gives consistently higher values forPaCO2and PaO2. Which of the following is the most probable cause of higher readings from the second instrument?

A. The sample chamber temperature is greater than 37° C
B. An excessive delay occurred between running the two samples
C. The PO2and PCO2electrodemembranes have protein build-up
D. The sample chamber has a bacterial contaminate

Answer: A