BLOOD GAS ANALYSIS, umbilical cord (087-5101)

Synonyms: Cord Gases, UA and/or UV Gases

CPT 4 Code: 82803

Order Test Mnemonic: AC ABG and/or AC VBG

Test Includes: pH, pCO₂, pO₂, Bicarbonate (HCO₃^-), Base Deficit

Lab: High Volume Lab Rm 5.134 McCullough

Request Form: Chemistry 3 - Blood Gases

Collection: Care should be taken to avoid drawing air into the syringe. Bubbles should be removed from the sample immediately.

Storage Instructions: 2-8° C; transport, on ice, immediately (within 15 minutes) to lab

Causes for Rejection: Clotted, inappropriate container, anticoagulant other than sodium or lithium heparin, blood leaking from syringe into ice, large air space or bubbles in syringe. Syringes with needles attached.

Availability: Samples are accepted 24 hours a day at the High Volume Lab Rm 5.134 McCullough.

Turnaround Time: 10 minutes

Special Instructions: Blood must be drawn anaerobically.

Specimen: Blood drawn from UMBILICAL artery and/or vein at delivery

Volume: 3 mL blood

Minimum Volume: 1 mL blood

Container: Blood should be drawn into gas-tight plastic syringes using 1000-unit sodium or lithium heparin; other anticoagulants are not acceptable.

Reference Ranges: pH: 7.23-7.33

Critical Values: None defined for cord samples

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