Test Prep RPFT Online Practice Questions and Exam Preparation

Test Prep RPFT Online Questions & Answers

• Question 41:

  When using a variable pressure plethysmograph, a leak in the door seal that develops subsequent to calibration will cause underestimation of

  A. Raw
  B. VTG
  C. Alveolar pressure
  D. vital capacity
  C. Alveolar pressure

• Question 42:

  During an exercise (stress) test, the minute ventilation to carbon dioxide production (Ve /VCO2) ratio is 100. This measurement indicates

  A. Severe pulmonary hypertension
  B. A normal response
  C. Equipment malfunction
  D. Increased work of breathing
  C. Equipment malfunction

• Question 43:

  During daily quality control procedures on an infrared CO2 analyzer, a pulmonary function technologist is unable to adjust the gain to the calibration gas concentration. Which of the following is the most likely explanation?

  A. Water droplets in the sample cell
  B. Saturation of the soda lime
  C. Presence of high levels of oxygen
  D. Increased gas sampling rate
  A. Water droplets in the sample cell

• Question 44:

  After finishing the exercise portion of a test for exercise-induced bronchospasm, a patient complains of difficulty "catching her breath." A pulmonary function technologist should

  A. Give the patient a bronchodilator.
  B. Administer oxygen at 2 L/min.
  C. Instruct the patient to breathe normally.
  D. Have the patient perform an FVC maneuver.
  A. Give the patient a bronchodilator.

• Question 45:

  While performing a quality control test on an open circuit nitrogen system, the volume of a 3-liter syringe is measured as 3.9 L. Which of the following is the most probable explanation?

  A. There was an air leak in the system.
  B. The initial O2 concentration in the syringe was greater than 0.21.
  C. The volume was not corrected from ATPS to BTPS.
  D. The nitrogen analyzer gain was set too low.
  A. There was an air leak in the system.

• Question 46:

  The normal response to an increasing PaCO2 is

  A. To maintain a constant VE until the PaCO2 exceeds 55 torr.
  B. A decrease in VE of 2 to 5 L/min/torrPCO2.
  C. An increase in VE of 1 to 6 L/min/torr PCO2.
  D. An increase in VE of 10 to 15 L/min/torrPCO2.
  C. An increase in VE of 1 to 6 L/min/torr PCO2.

• Question 47:

  The following data are obtained after an exercise (stress) test for exercise-induced asthma:

  

  Based on these data, the post-exercise FEVi represents a decrease of approximately

  A. 67%
  B. 20%
  C. 17%
  D. 13%
  D. 13%

• Question 48:

  A pulmonary function technologist can calculate which of the following if values for pH, PaO2, SaO2, SvO2 PvO2, VO2, and Hb are obtained?

  A. Cardiac output
  B. RER
  C. VD/VT
  D. Stroke volume
  A. Cardiac output

• Question 49:

  Which of the following is a common reason for an unstable zero reading from an infrared analyzer?

  A. Debris in the sampling system
  B. Inaccurate calibration gases
  C. Exhausted DRIERITE
  D. Excess room humidity
  A. Debris in the sampling system

• Question 50:

  A pulmonary function technologist reviews the following home monitoring spirometry results:

  

  According to National Asthma Education and Prevention Program (NAEPP) guidelines, what feedback should the technologist give to the patient regarding test performance?

  A. Ask the patient to blow out longer.
  B. Encourage the patient to continue testing and monitoring the FEW
  C. Ask the patient to recalibrate the spirometer.
  D. Come into the office for further instructions on proper testing technique.
  B. Encourage the patient to continue testing and monitoring the FEW