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Blood Gas, Venous

Last modified by  mike_rogers  on  March 16, 2010 07:07 AM


UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514

Includes:  pH, pCO2, pO2, Bicarbonate, Base Balance, O2 Saturation(measured)

 

Specimen Type
syringe on ice


Test ID BGASV
Test Number 1645
SMS Browse BLOOD GAS-VENOUS
CPT Code(s) 82805
Group/Individual Test Group
Laboratory Blood Gas
Tube Station 31
SpecimenRoutine:1.0 mL in 3cc syringe w/ lyophilized heparin in BG Kit;  PLEASE SPECIFY:source;  See important COMMENTS
 micro:0.3 mL in TB syringe w/ lyophilized heparin in BG Kit;  PLEASE SPECIFY: source;  See important COMMENTS
AvailabilityRoutine:24 Hours/Day
 STAT:YES 
   
Turnaround Time 5 minutes
Reference RangeNormal:See Table Below
 Critical:See Table Below
Comments

Deliver Immediately. Place specimen on ice if transport to the laboratory is anticipated to exceed 30 minutes
Syringes with needles attached will NOT be accepted
Heparinized capillary samples can be analyzed if at least 100 µL of clot-free blood is present.  Syringes may be obtained from Central Distribution.
If temperature-corrected results are required then see test 1646(Blood Gas, Venous Temperature Corrected)

Oxygen saturation is a measure of the fraction of oxygenated hemoglobin in relation to the amount of hemoglobin capable of transporting oxygen. Oxygen saturation can be clinically misleading in the presence of dyshemoglobins such as carboxyhemoglobin and methemoglobin. This is because the oxygen-carrying capacity of the blood will be decreased but the saturation will often remain within reference limits.


Reference Ranges:  Blood Gases
 Reference RangeCritical Range
pH7.32-7.43<7.20 or >7.65
pCO240-60 mmHg<20 or >65 mmHg
pO230-55 mmHg (at R.A.) 
HCO322-27 mmol/L 
BB±2 mmol/L 
O2 Sat40-85% 

 

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Blood Gas, Venous

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