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HelpTest Code VBG BLD GAS,VENOUS
Additional Codes
LAB3032
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: Lithium heparin plasma seperator tube (PST)
Specimen Volume: 2 mL
Collection Instructions:
1. Draw VENOUS 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
Test Classification and CPT Coding
82803
Normal Reference Values
|
VENOUS Blood Gas Reference Intervals - ALL AGES |
|||
|
Analyte |
|
Units |
|
|
pH |
7.31-7.41** |
|
|
|
pO2 |
None |
|
|
|
pCO2 |
41-51** |
mmHg |
|
|
HCO3 |
23-28** |
mmol/L |
|
|
O2 Sat |
None |
|
|
|
Lactate |
0.36-1.39*** |
mmol/L |
|
|
BE |
(-2) to (+3) |
mmol/L |
|
|
** iSTAT |
|
***RapidPoint |
Critical Values
None Established