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?
Which of the following sets of FIF data is most consistent with an extrathoracic airway 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 helium dilution test has just been performed on a patient. The following results are obtained:
FRC 5.0 L
VC 4.0 L
ERV 1.5 L
TLC was calculated to be 6.0 L by plethysmography. From this information, a pulmonary function technologist should conclude that the patient
The following biologic control measurements are obtained:
Which of the following patterns appears in this plot?
Biological control data are obtained for lung volumes by plethysmography. The following results are obtained:
A pulmonary function technologist should repeat the test instructing the individual to
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.
A patient who smokes three packs of cigarettes a day has a DLcoOf 45% of predicted. The patient is referred for exercise (stress) testing. Which of the following should a pulmonary function technologist select to evaluate oxygenation?
To assure linearity of an oxygen analyzer, calibrate with
The following data were obtained from a bronchial challenge test:
APC20of 2 mg/mL was obtained the next day in another laboratory. Which of the following is the most likely explanation for these data?
