• J Intensive Care Med · Sep 2005

    Review

    Lactic acidosis: from sour milk to septic shock.

    • Pamela J Fall and Harold M Szerlip.
    • Section of Nephrology, Hypertension and Transplantation, Department of Medicine, Medical College of Georgia, Augusta 30912, USA.
    • J Intensive Care Med. 2005 Sep 1;20(5):255-71.

    AbstractLactic acidosis is frequently encountered in the intensive care unit. It occurs when there is an imbalance between production and clearance of lactate. Although lactic acidosis is often associated with a high anion gap and is generally defined as a lactate level >5 mmol/L and a serum pH <7.35, the presence of hypoalbuminemia may mask the anion gap and concomitant alkalosis may raise the pH. The causes of lactic acidosis are traditionally divided into impaired tissue oxygenation (Type A) and disorders in which tissue oxygenation is maintained (Type B). Lactate level is often used as a prognostic indicator and may be predictive of a favorable outcome if it normalizes within 48 hours. The routine measurement of serum lactate, however, should not determine therapeutic interventions. Unfortunately, treatment options remain limited and should be aimed at discontinuation of any offending drugs, treatment of the underlying pathology, and maintenance of organ perfusion. The mainstay of therapy of lactic acidosis remains prevention.

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