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

The following data are observed during an exercise test:

Which of the following should a pulmonary function technologist do?

The ECG above is recorded during the recovery phase immediately following termination of an ergo meter exercise study. A pulmonary function technologist should

The following Levy-Jennings charts of control values are obtained:
Which of the following is the correct sequence of actions for a pulmonary function technologist to take?
1. Replace the oxygen electrode.
2. Check the temperature of the measuring chamber.
3. Run protein remover through the blood gas analyzer.
4. Replace the CO2electrode.

Which of the following information reported from a recent methacholine challenge test best summarizes the patient's bronchial hyperresponsiveness?