Does consumption of ethanol distort measurements of exhaled nitric oxide?

Conclusions: FENO measurements were reproducible even in subjects with moderate concentrations of ethanol in blood and breath. The small decrease in FENO observed at 3 and 4 h post-drinking was less than the intra-subject variations in FENO measurements. The breath-alcohol concentrations in this study exceed all other endogenous volatiles, thus making it unlikely that other substances in human breath will bias the FENO measurements.