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Table 1 Acid–base parameters for a normal and two abnormal cases

From: Science review: Quantitative acid–base physiology using the Stewart model

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

  1. 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.