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Table 3 An example of Stewart formulae (Eqns 18–21) in practice

From: Bench-to-bedside review: Fundamental principles of acid-base physiology

Parameter

Control

Case 1

Case 2

BE (mEq/l)

0

-10

-10

AG (mEq/l)

14.8

14.8

14.8

β

5.7

5.7

2.2

BEcorrected

0

-10.6

-10.2

[SID+]e (mEq/l)

39

29

20.7

[SID+]a (mEq/l)

39

29

29

SIG (mEq/l)

0

0

8.3

  1. AF, anion gap; β, buffer value; BE, base excess; SID+, strong ion difference; SIG, strong ion gap.