Acid-Base

http://www.acidbase.org

Anion gap correction for hypoalbuminemia:  2.5 meq/l for every 1g/dl decline in albumin

Venous blood gas agrees with arterial blood gas (pH, bicarbonate, lactate, base excess, and carbon dioxide pressure (Pco2)) within 95% CI:

1. Middleton P, Kelly AM. Brown J, et al: Agreement between arterial and central venous values for pH, bicarbonate, base excess, and lactate.  Emerg Med J  2006; 23(8):622-4.

2. Malatesha G, Singh NK, Bharija A, et al: Comparison of arterial and venous pH, bicarbonate, Pco2 and Po2 in initial emergency department assessment.  Emerg Med J  2007; 24(8):569-71.

3. Kelly AM: The case for venous rather than arterial blood gases in diabetic ketoacidosis.  Emerg Med Australas  2006; 18:64.

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