infants showed an increase of at least 5 inspirations per minute (ipm); in 10 (77%), RR went above 40 ipm. There was also a significant increase in RR CV (WSRT Z = —2.37, P =.02). There was no significant change in O2-sat from baseline to blood collection (WSRT, Z = -0.14, P = .89). The nadir 02-sa