Blood Gases | Phlebotomy - MedSchool
Sign up to start your free trial of MedSchool Premium!Get Started

Blood Gases



    • 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