Keywords: Normal values for FVC, FEV1 and FEF 25-75.svg Forced Vital Capacity FVC Forced Expiratory Volume in 1 Second FEV1 and Forced Expiratory Flow 25 75 FEF25 75 Y-axis is expressed in Litres for FVC and FEV1 and in Litres/second for FEF25 75 See main article Wikipedia Spirometry Reference cite journal Stanojevic S Wade A Stocks J et al Reference ranges for spirometry across all ages a new approach Am J Respir Crit Care Med 177 3 253 60 2008 February 18006882 2643211 10 1164/rccm 200708-1248OC own Made in Inkscape Mikael HΓ€ggstrΓΆm gallery of 2014 2010-03-14 thumb 300px left png-format Spirometry |