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Order Code LAB4893 Arterial Cord Blood Gases (Umbilical Artery)

Useful For

To determine acidosis in a newborn

Specimen Requirements

Special Note: Collect specimen in a heparinized syringe. Remove needle and cap to prevent exposure to air. Immediately send to laboratory. 

 

Specimen Type: Heparinized syringe

Collection Container/Tube:

Preferred: Heparinized syringe, NOT on ice

Acceptable: Heparinized syringe, on ice

Specimen Volume: 1 mL

Specimen Stability

Specimen Type Temperature Stability         
Heparinized Syringe Ambient (preferred) 30 minutes
  Ambient, On wet ice 30 minutes

Reference Values

  • pH:  7.12 - 7.33
  • pCO2:  44.2 - 71.2 mm Hg
  • pO2:  6.5 - 26.1 mm Hg
  • HCO3:  20.3 - 28.0 mmol/L
  • Base excess:  -10.1 to -0.2 mmol/L

Day(s) Test Set Up

Monday through Sunday

Performing Laboratory

Ridgeview Medical Center Laboratory

Methodology

Includes pH, pCO2, pO2, O2 saturation, HCO3, and base excess.

Test Classification and CPT Coding

82805