What is the role of lab studies in the diagnosis of intestinal perforation?

Updated: Jul 24, 2020
  • Author: Samy A Azer, MD, PhD, MPH; Chief Editor: John Geibel, MD, MSc, DSc, AGAF  more...
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Answer

A complete blood count (CBC) may reveal parameters suggestive of infection (eg, leukocytosis), though leukocytosis may be absent in elderly patients. Elevated packed blood cell volume suggests a shift of intravascular fluid. Blood culture for aerobic and anaerobic organisms is indicated. Findings from liver function and renal function tests may be within reference ranges (or nearly so) if no preexisting disorder is present.


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