Practice Quiz

Respiratory Therapist

Category - Patient Evaluations and Recommendations

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Which of the following is true statement(s) regarding pulmonary function tests?
  1. Diffusion capacity is performed at during routine bedside spirometry.
  2. A less than 80% of predicted inspiratory capacity indicates a patient with restrictive disease.
  3. A “body box” is less beneficial than a bedside spirometry.
  4. Results that are less than 85% of a normal value are considered abnormal.
Explanation
Answer: B - Less than 80% of predicted inspiratory capacity indicates a patient with restrictive disease.

A diffusion capacity test is part of a full pulmonary function test, not during a bedside spirometry. A body box is the most beneficial and accurate setting for pulmonary function testing.
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