Test Prep RPFT Online Practice Questions and Exam Preparation

Test Prep RPFT Online Questions & Answers

• Question 21:

  Results of two blood gas samples drawn from the same patient, 30 minutes apart, are shown below:

  

  Which of the following is the most likely explanation for these differences?

  A. The patient's minute ventilation has increased.
  B. The patient has developed a pneumothorax.
  C. The 10:30 blood sample has been contaminated with air.
  D. The 10:30 blood sample contains an excess of heparin solution.
  A. The patient's minute ventilation has increased.

• Question 22:

  The following results were obtained from a symptom-limited exercise (stress) test:

  

  Which of the following is true regarding these data?

  A. The patient is deconditioned.
  B. The patient has a cardiac limitation to exercise.
  C. The patient reached the anaerobic threshold.
  D. The patient has a pulmonary limitation to exercise.
  B. The patient has a cardiac limitation to exercise.

• Question 23:

  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.
  A. Add montelukast (Singular).

• Question 24:

  During exercise, a subject's oxygen consumption increases out of proportion to his cardiac output. This is due to an increase in:

  A. Anaerobic metabolism
  B. Alveolar ventilation
  C. Coronary blood flow
  D. Oxygen extraction
  C. Coronary blood flow

• Question 25:

  To check the reliability of a pulse oximeter reading, a pulmonary function technologist should

  A. Calculate the SaO2 from pH and PaO2
  B. Perform hemoximetry
  C. Measure the hematocrit
  D. Have the patient hyperventilate
  B. Perform hemoximetry

• Question 26:

  During calibration of a spirometer, injection of air with a 3-liter syringe results in the following:

  

  Using another 3-liter syringe, air is again injected with the following results:

  

  A pulmonary function technologist should conclude that the

  A. Calibration should be repeated
  B. Spirometer is alinear
  C. First syringe is not set properly
  D. Spirometer has intermittent failure
  C. First syringe is not set properly

• Question 27:

  In a patient with neuromuscular disease, which of the following is the best way to detect airway obstruction?

  A. SGaw
  B. MIP
  C. PEF
  D. MVV
  D. MVV

• Question 28:

  A 12-year-old patient completed an evaluation for exercise-induced asthma in the pulmonary function laboratory. The patient completed six minutes of exercise on a treadmill with a heart rate of 145 to 150/min. The following spirometry data were collected:

  

  A pulmonary function technologist should conclude that the exercise test is

  A. Inadequate workload with a positive response
  B. Adequate workload with a negative response
  C. Inadequate workload with a negative response
  D. Adequate workload with a positive response
  D. Adequate workload with a positive response

• Question 29:

  The following values are obtained using a 3-liter calibration syringe during volume calibration of a dry-rolling spirometer:

  2.80 L

  2.79 L

  2.82 L The performance of this spirometer is best described as

  A. Neither accurate nor precise.
  B. Both accurate and precise.
  C. Precise, but not accurate.
  D. Accurate, but not precise.
  D. Accurate, but not precise.

• Question 30:

  Which of the following thresholds for a clinically significant change in lung function from the beginning to the end of a methacholine challenge test is significant?

  A. An increase of more than 20% in airway resistance
  B. A decline of more than 30% in FEF25-75%
  C. A decline of more than 20% in FEV1
  D. A decline of more than 20% in inspiratory capacity
  C. A decline of more than 20% in FEV1