Conclusion
An increased blood lactate concentration is clearly a marker for circulatory failure and tissue hypoxia, including that associated with sepsis. Whether other mechanisms cause or contribute to lactate elevations in sepsis remains to be clearly elucidated. Hypermetabolism induced by a systemic inflammatory state, along with dysregulation of the microcirculatory distribution of perfusion, are likely explanations for the co-existence of hyperlactatemia, a hyperdynamic circulation, and a low oxygen extraction state as seen in many cases of clinical sepsis. High blood lactate levels in the patient with sepsis should alert the clinician to consider the possibility of inadequate tissue perfusion and oxygenation.
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Kruse, J.A. (2002). Blood Lactate Concentrations in Sepsis. In: Vincent, JL., Carlet, J., Opal, S.M. (eds) The Sepsis Text. Springer, Boston, MA. https://doi.org/10.1007/0-306-47664-9_18
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DOI: https://doi.org/10.1007/0-306-47664-9_18
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