Which of the Following Predicted Sets is Recommended for Use

Question

Which of the following predicted sets is recommended for use in North America for spirometry?
A) ECCS
B) ATS
C) NHANES III
D) ERS 1993

Accepted Answer

NHANES III (National Health and Nutrition Examination Survey) reference values are recommended for use in North America for spirometry because they are based on a large, well-defined population sample that is representative of the modern, diverse U.S. population.