Table 1

Acid–base and biochemical parameters for all samples (n = 374)

Variable

Unit

Mean

SD

PH

-

7.31

0.09

p_CO2

Kpa

4.6

1.1

BD_tot

meq/L

-7.4

4.7

BD_alb

meq/L

+2.9

2.2

BD_Cl

meq/L

+0.16

5.0

BD_UMA

meq/L

-10.0

5.7

Sodium

meq/L

140

5.1

Chloride

meq/L

109

6.9

Albumin

g/L

30.5

8.8

Lactate

meq/L

2.5

2.3

Strong ion gap

meq/L

10.7

5.5

BD_alb, base deficit due to albumin; BD_Cl, base deficit due to chloride; BD_tot, total base deficit; BD_UMA, base deficit due to unmeasured anions.

O'Dell et al. Critical Care 2005 9:R464   doi:10.1186/cc3760