Comprehensive quality assurance of pulmonary function testing consists of which of the follow-ing:
1. The accuracy and precision of the measured instrument.
2. Patient must be able to do a breath-hold between 3 and 5 sec.
3. The performance of the technologist.
4. Test results when measuring a standard.
a. 2, 3, and 4 only
b. 2 and 3 only
c. 1, 3, and 4 only
d. 1, 2, and 3 only
ANS: C
Quality assurance of pulmonary function testing requires accuracy and precision of instruments, monitoring of the performance of the technologist and test results being compared to a measured standard. A patient breath hold is not required.
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