If a volume-measuring spirometer meets the ATS-ERS standards for measuring FVC and is verified using a calibration syringe,how much measurement error is allowed?
A) 0%
B) 3.5%
C) 5.3%
D) 10%

Question

Quizplus · Accepted Answer

According to ATS-ERS standards, a volume-measuring spirometer must have an accuracy of ±3.5% or ±50mL, whichever is greater, when measuring FVC. Verification using a calibration syringe ensures that the spirometer is accurately measuring volume, but there may still be some measurement error allowed within the ±3.5% range. Therefore, the correct answer is B.

If a Volume-Measuring Spirometer Meets the ATS-ERS Standards for Measuring