Table 3: Arterial gases and oximetry of patients in respiratory failure.

Patient No.

SaO2 (%)

PaO2(cmH2O)

PaCO2(cmH2O)

1

1

92%

70

55

2

2

90%

61

52

3

90%

58

49

3

4

89%

56

50

5

87%

55

53

6

86%

57

59

SaO2 = oxygen saturation, PaO2 = arterial oxygen tension, PaCo2 = arterial carbon dioxide.