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Test Code CORDABG CORD ARTERIAL BLOOD GAS

Important Note

  1. Specimen must arrive within 30 minutes of draw.
  2. Place on WET ICE IMMEDIATELY.

Call Logan Health Medical Center Laboratory at 406-752-1737 if drawing patient off-site.

Methodology

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

Useful for assessing acid-base balance and pulmonary oxygen-gas exchange.

Specimen Requirements

Call Logan Health Medical Center Laboratory at 406-752-1737 if drawing patient off-site.

 

Specimen must arrive within 30 minutes of draw.

 

Container/Tube: Heparinized blood gas syringe

Specimen Volume: 1 mL (minimum volume: 40 mcL) of cord blood-Air bubble or clot is not acceptable.

Collection Instructions:

  1. Draw cord blood anaerobically into heparinized blood gas syringe immediately after delivery.
  2. Expel air bubbles and place on WET ICE IMMEDIATELY.
  3. Specimen must be analyzed with 1 hour of draw.

Day(s) Test Set Up

Monday through Sunday

Reference Values

pH

7.18-7.38

Critical value (automatic call-back): <7.10

 

pO2

6-30 mm Hg

 

pCO2

32-66 mm Hg

 

HCO3

17.3-27.3 mmol/L

 

BE

-2.0 to +9.4

Critical value (automatic call-back): <-9.0

O2 SATURATION

4%-70%

Performing Laboratory

Logan Health Medical Center-Chemistry

Test Classification and CPT Coding

82803

Specimen Transport Temperature

On wet ice