Blood Gases | Phlebotomy - MedSchool
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Phlebotomy
 

Blood Gases

 
 

Overview

    • Effects of Late Testing

    • Ongoing cellular metabolism will occur as specimens are left without being tested.
    • Decreased pO2 and increased pCO2 - due to ongoing metabolism
    • Decreased pH - due to increase in pCO2
    • Decreased calcium - due to increased binding to protein at a lower pH
    • Increased glucose - due to glycolysis
    • Increased lactate - due to glycolysis
    • Prevention

    • Cool the sample to 0-4 degrees using ice if it is unlikely to be processed within 15 minutes.
Last updated on August 24th, 2017
 
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