Table 1

Acid–base parameters for a normal and two abnormal cases

Case

pH

[HCO3-] (mmol/l)

CAlb (mmol/l)

CPhos (mmol/l)

PCO2 (Torr)

SID (mmol/l)


1 (normal)

7.40

24.25

0.67

1.16

40.0

39

2

7.30

15.27

0.67

1.16

31.7

29

3

7.40

24.25

0.15

1.16

40.0

29


Case 1 is for a normal individual, case 2 is for a metabolic acidosis at constant noncarbonate buffer concentrations, and case 3 is for hypoproteinemia. CAlb, albumin concentration; CPhos, phosphate concentration; PCO2, partial CO2 tension; SID, strong ion difference.

Wooten Critical Care 2004 8:448   doi:10.1186/cc2910