RPFT Online Practice Questions and Answers

A 9-year-old girl had an FVC of 2.35 L1 year ago. She was 122 cm (4 ft) tall and weighed 29.5 kg (65 lb). Her current height is 127 cm (4 ft 2 in), and her weight is 34 kg (75 lb). The current FVC measurement is

2.20 L. The quality of both tests met ATS/ERS goals. A pulmonary function technologist should conclude the change is

A. Not significant since it is less than a 15% decrease.

B. Not significant since it is within normal test variability.

C. Significant since a decline is not expected.

D. Significant since her weight has changed.

A treadmill is set so that the belt rises 1 ft in a horizontal distance of 10 ft at 3 mph. The percent grade indicator should read

A. 30.0%

B. 1.0%

C. 3.0%

D. 10.0%

Treadmill speed can be verified by

A. Multiplying the belt length by the cycles/min.

B. Dividing the height by the horizontal distance.

C. Multiplying the cycles/min by the height.

D. Dividing the cycles/min by the belt length.

A pulmonary function technologist is asked to select gas concentrations to simulate pediatric patients' exhaled concentrations during a DLco simulation. Which of the following FECO concentrations should the technologist select?

A. 0.200

B. 0.300

C. 0.400

D. 0.100

Prior to performing a multiple-breath U2 washout test, a pulmonary function technologist is unable to zero the H2 gas analyzer. Which of the following may be responsible?

A. Inadequate vacuum

B. Exhausted fuel cell

C. Chopper motor failure

D. Condensation of water

A patient is performing a flow-volume loop. A pulmonary function technologist observes equal decreases in expiratory and inspiratory flows resulting in plateaus. Patient effort is satisfactory, and he follows instructions well. The technologist should expect the patient to have a

A. Small airways obstruction

B. Restrictive disorder

C. Variable large airways obstruction

D. Fixed large airways obstruction.

A government agency requires that a pulmonary function technologist establish procedures to minimize the loss of laboratory data. Which of the following should be included in these procedures?

1.

Continuous mirroring of hard drives

2.

Storage of duplicate test data offsite

3.

No Internet connections to the computer storing the database

4.

Contracting with a third-party security company

A. 2, 3, and 4 only

B. 1, 3, and 4 only

C. 1, 2, and 4 only

D. 1, 2, and 3 only

Airways resistance and specific conductance tests are requested for a 7-year-old child with asthma. Which of the following techniques is preferred?

A. Panting with body plethysmography

B. Quiet breathing with body plethysmography

C. Interrupter

D. Oscillation

A 6-year-old child has a history of repeated episodes of wheezing and shortness of breath. A pulmonary function technologist has difficulty obtaining repeatable spirometry results. Which of the following tests should be performed next?

A. MVV

B. DLco

C. SGaw

D. SpO2

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