According to the 2005 ATS-ERS repeatability standards,of the three acceptable tracings,the two largest FVC values and the two largest FEV₁ values in a subject with a vital capacity greater or equal to 1.0 L should be within how many milliliters?

Question

According to the 2005 ATS-ERS repeatability standards,of the three acceptable tracings,the two largest FVC values and the two largest FEV1 values in a subject with a vital capacity greater or equal to 1.0 L should be within how many milliliters?

According to the 2005 ATS-ERS repeatability standards,of the three acceptable tracings,the two largest FVC values and the two largest FEV₁ values in a subject with a vital capacity greater or equal to 1.0 L should be within how many milliliters?