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Demystifying Lactate in the Emergency Department

Gabriel Wardi, Jessica Brice, Matthew Correia, Dennis Liu, Michael Self, Christopher Tainter
Annals of Emergency Medicine 2019 August 29
31474479
The role of lactic acid and its conjugate base, lactate, has evolved during the past decade in the care of patients in the emergency department (ED). A recent national sepsis quality measure has led to increased use of serum lactate in the ED, but many causes for hyperlactatemia exist outside of sepsis. We provide a review of the biology of lactate production and metabolism, the many causes of hyperlactatemia, and evidence on its use as a marker in prognosis and resuscitation. Additionally, we review the evolving role of lactate in sepsis care. We provide recommendations to aid lactate interpretation in the ED and highlight areas for future research.

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