A readout of lactate levels over time as measured by a continuous lactate monitor over a period of cycling. Lactic acid levels rise during episodes of critical illness and internal bleeding, which may not be visible to the naked eye. (Image courtesy of UC Irvine)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
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Keywords: bleeding, combat, internal, medicine, technology, usamrmc