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Cord Arterial Blood Gas
Test CodeCORDABG
CPT Codes
82803
Preferred Specimen
Cord arterial blood
Minimum Volume
1ml
Other Acceptable Specimens
Heparinized arterial sample
Instructions
Avoid introducing air into syringe as this may affect results.
Transport Container
Heparinized syringe
Transport Temperature
Room temperature or in slushed ice
Specimen Stability
30 minutes at room temperature, 1 hour in slushed ice
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Clotted samples
Methodology
Potentiometric and Amperometric
Setup Schedule
Performed daily upon receipt
Report Available
Upon completion of analysis
Reference Range
pH= 7.10 - 7.38
pCO2= 19.1 - 73.5 mmHg
pO2= 4.1 - 31.7 mmHg
BE= -7 to 2
HCO3= 21 - 29 mmol/L
Clinical Significance
Cord gases are drawm from the umbilical cord during deliver to determine oxygenation of newborns blood. Acidosis in arterial cord blood may indicate oxygen deficiency from the mother to the newborn.