Title: Intermediate Lactate Levels<br/>Author: Michael Winters<br/><a href='http://umem.org/profiles/faculty/141/'>[Click to email author]</a><hr/><p>
<u><strong>Are Intermediate Lactate Levels Concerning in Patients with Suspected Infection?</strong></u></p>
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It is well known that lactate levels > 4 mmol/L are associated with increased mortality in patients with suspected infection.</li>
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What is unclear, however, is the prognostic value of intermediate lactate levels (2.0-3.9 mmol/L) in patients with suspected infection.</li>
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Puskarich, et al. performed a systematic review to determine the risk associated with intermediate lactate levels.
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8 studies (> 11,000 patients) were included in the analysis</li>
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Mortality for patients with intermediate lactate levels but <em>without hypotension</em> was 15%</li>
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Mortality was > 30% for hypotensive patients with intermediate levels of lactate.</li>
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<strong>Take Home Point: Patients with intermediate lactate levels have an increased risk of mortality.</strong></li>
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Though no current guidelines exist for the optimal care of these patients, aggressive care should continue until repeat levels demonstrate normalization.</li>
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<fieldset><legend>References</legend>
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Puskarich MA, et al. Prognosis of emergency department patients with suspected infection and intermediate lactate levels: A systematic review. <em>J Crit Care</em> 2014; 29:334-339</p>
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