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Test Code ABG BLD GAS,ARTERIAL

Additional Codes

LAB3031

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. Ideally, the sample should be tested within 15 minutes of collection. If this cannot be achieved, place on ice for up to 2 hours.

Test Schedule / Analytical Time / Test Priority / Turn Around Time

Daily / Immediately / Available STAT

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

Normal Reference Values

ARTERIAL Blood Gas Reference Intervals

 

 

 

Analyte

0-24 hr

1-6 days

6 days - 17 yrs

18 and older

Units

pH

7.26-7.49*

7.29-7.45*

7.35-7.45*

7.35-7.45*

 

pO2

55-80*

54-95*

80-105*

80-105*

mmHg

pCO2

27-40*

27-41*

35-45*

35-45*

mmHg

HCO3

22-26*

22-26*

22-26*

22-26*

mmol/L

O2 Sat

95-98%*

95-98%*

95-98%*

95-98%*

 

BE

(-2) to (+3)**

(-2) to (+3)**

(-2) to (+3)**

(-2) to (+3)**

mmol/L

* Tietz 5th ed

** iSTAT

***RapidPoint

**** Harriett Lane Handbook 21st ed

*****UVMMC

 

Critical Values

pH: Below 7.0 and Above:7.6

Test Classification and CPT Coding

82803