Home
HelpTest Code COABG BLD GAS, CORD, ARTERIAL
Additional Codes
LAB3033
Performing Laboratory
Porter Hospital 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
Collection Instructions:
1. Draw arterial blood anaerobically.
2. Expel air bubbles, remove needle from syringe and cap-Air bubble is not acceptable.
3. Arterial Samples from umbilical cord should be analyzed as soon as possible after collection.
4. Ideally, the sample should be tested within 15 minutes of collection. If this cannot be achieved, place on ice for up to 2 hours.
Methodology
Instrument: RapidPoint
pH Potentiometric method using standard ionselective electrode (ISE) technology
pCO2 Modified potentiometric method based on the principle of the Severinghaus electrode
pO2 Amperometric measurement based on the principles of the Clark electrode
Test Schedule / Analytical Time / Test Priority / Turn Around Time
Daily / Immediately / Available STAT
Normal Reference Values
|
Analyte |
Arterial |
Units |
|
pH |
7.18-7.38 |
|
|
pO2 |
6-30 |
mmHg |
|
pCO2 |
32-66 |
mmHg |
|
HCO3 |
17-27 |
mmol/L |
|
BE |
(-)7 to (+)2 |
mmol/L |
|
Reference |
Tietz 5th ed (pH, pO2, pCO2) & Duke Medical Center Study (BE) |
Tietz 5th ed (pH, pO2, pCO2) & Duke Medical Center Study (BE) |
Critical Values
None currently established.
Test Classification and CPT Coding
82803