From: How early is enough in lactate monitoring?
NIV responders
NIV nonresponders
pH at start
7.25 ± 0.09
7.24 ± 0.07
pH at 2 hours
7.34 ± 0.07*â€
7.24.± 0.06
Lactate clearance at 2 hours (%)
51 (41, 57)â€
13 (12, 22)