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. 2017 Oct 11;12(10):e0185553. doi: 10.1371/journal.pone.0185553

Fig 1. Tissue N2 excretion equations used for correction of MBWN2 measurements.

Fig 1

The three equations used to estimate the volume of N2 excreted from the body tissues are plotted over a 7 minute time period. The Cournand 1941 equation was adjusted for a constant excretion rate and plotted for a subject with the average body size of the subjects measured in the Lundin 1953 study. The ATS/ERS equation calculates the volume of tissue N2 excreted using Cournand’s 1941 equation standardized to a 7 minute washout for all subjects.