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Blood Gas, Cord, Blood*

Important Note

*This test is orderable in Cerner: Blood Gas Cord Blood

Performing Laboratory

Rutland Regional Medical Center Laboratory

Specimen Requirements

Specimen must arrive within 30 minutes of draw.

 

Specimen Type: Whole blood-Clotted blood is not acceptable.
Container/Tube: Heparinized blood gas syringe

Specimen Volume: 2 mL

Specimen Minimum Volume: 1 mL
Collection Instructions:

1. Draw arterial blood anaerobically.

2. Expel air bubbles, remove needle from syringe and cap-Air bubble is not acceptable.

3. Immediately place syringe on wet ice.

 

Specimen Type: Whole blood-Clotted blood is not acceptable.
Container/Tube: Dark-green (lithium heparin) Vacutainer

Specimen Volume: 2 mL

Collection Instructions:

1. Draw arterial blood anaerobically.

2. Expel air bubbles and cap-Air bubble is not acceptable.

3. Immediately place tube on wet ice.

Specimen Transport Temperature

On wet ice

Day(s) Performed

Daily

Analytical Time:

1 hour

Available STAT

Test Classification and CPT Coding

82803

Methodology

Ion-Selective Electrode (ISE)
Includes pH, pCO2, pO2, O2 saturation (SO2), base excess, and bicarbonate (HCO3).

Reference Values

pH

7.23-7.33

Critical values (automatic call-back): <7.2 or >7.6

 

pCO2

40.6-57.4 mm Hg

Critical values (automatic call-back): <20 mm Hg or >70 mm Hg

 

pO2

11.8-24.2 mm Hg

Critical value (automatic call-back): <50 mm Hg

 

BASE EXCESS

-6 - -2 mmol/L

 

HCO3

19.5-24.5 mEq/L

Critical value (automatic call-back): <15 mEq/L