The pt was on vapotherm and the liter flow which was found to be insufficient at settings of 51pm.At 1630 on 08/11/2015 the pt was placed on vapotherm at 5 liters per minute and 100% fio2.At 1839 arterial blood gases were 7.30 ph, 48 co2, 75 po2.At 1900, spo2 96%, hr 142, rr 81.Heart rate was 13, reparatory rate was 35 with o2 sats of 99.Pt placed on replacement vapotherm and then returned to baseline.