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The following results are obtained:





The RV/TLC ratio from these data is consistent with which of the following?

  1. Obstructive defect
  2. Normal lung volumes
  3. Combined obstructive/restrictive defect
  4. Restrictive defect

Answer(s): A



Which of the following is the most reliable method to estimate the effectiveness of standard procedures to minimize the risk ofcross-contamination during spirometry testing in a pulmonary function laboratory?

  1. Count the number of disposable mouthpieces used for 1 week.
  2. Observe the handwashing behavior of each technologist.
  3. Ask patients tested about laboratory hygiene.
  4. Ask technologists if they wash their hands before each test

Answer(s): B



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

  1. 0.200
  2. 0.300
  3. 0.400
  4. 0.100

Answer(s): B



A 66-year-old female performs spirometry with the following results:



The patient most likely has

  1. Normal pulmonary function.
  2. Obstructive lung disease.
  3. Restrictive lung disease.
  4. Pulmonary hypertension.

Answer(s): C






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