From: Oxygen saturation determined from the mouth is an early indicator of central hypovolemia in humans
Baseline
HUT
Baseline 2
StO2 15 thenar
76 ± 6
75 ± 6
78 ± 7
StO2 25 thenar
76 ± 5
78 ± 8
StO2 buccal
88 ± 3
78 ± 3*
87 ± 3