While performing a calibration check of a spirometer using a 3.00-L syringe,2.84 L is measured.What should you do next?
A) Proceed with testing subjects.
B) Add 0.16 L to all subject measurements.
C) Check for leaks and recheck calibration.
D) Turn on the BTPS correction and recheck calibration.

Question

Quizplus · Accepted Answer

Any difference greater than 3% can indicate a calibration error. In this case, the difference is 5.3%, which is significant. Before proceeding with further testing, it is essential to check for leaks and recheck the calibration to determine if the error lies in the spirometer or the syringe. Adding 0.16 L to all subject measurements (B) is not a correct option as it assumes that the error is only in the syringe and not the spirometer. Turning on the BTPS correction (D) may correct the volume but not the calibration error, which needs to be addressed before testing subjects.

While Performing a Calibration Check of a Spirometer Using a 3.00-L