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Test Code VENGAS Blood Gas, Venous

Important Note

Remove the needle and cap the syringe, expel any air, and cap with the provided tip cap.

Do NOT place the sample on ice as this will increased the potassium values and affect the O2 levels.

Do NOT uncap the sample at any time. 

Deliver to the lab immediately.

Specimen Information

Container Specimen Storage Stability
Heparinized Syringe Whole Blood Ambient 30 minutes

After collection, firmly attach the cap (Filter-Pro) onto the syringe, While holding the luer end up, tap the syringe to move any air bubbles to the top. To remove the air, SLOWLY press the plunger and continue to advance until the sample wets the filter.

 

Reject Due To:

- Specimens received with needles attached

- Evidence of clotting or hemolysis

- Specimens collected in vacutainer tubes

- Specimens with excessive air bubbles

- Specimens received greater than 30 minutes after collection

- Non-heparinized samples

- Other sample types such as urine, CSF, pleural fluid

- Evidence of anticoagulant or IV contamination

- Unlabeled/Mislabeled specimens

- Specimens received on ice / cold packs

 

 

Instrumentation / Method

pH - iSTAT / Ion Selective Electrode Potentiometry at 37 C

pCO2 - iSTAT / Direct Potentiometry at 37 C

HCO3 - iSTAT / Calculated from pH and pCO2 results

 

Test Schedule / Analytical Time / Test Priority

Daily / Immediate / Available STAT

Reference Range

Analyte Reference Range Critical Low Critical High
pH 7.31 - 7.41  < 7.25 > 7.55
pCO2 41 - 51 mmHG N/A N/A
HCO3 N/A N/A N/A
BE/BD N/A N/A N/A

 

LOINC / CPT/ Ordering

Analyte CPT LOINC
VENGAS 82803  
pH, Venous   2746-6
pCO2, Venous   2021-4
HCO3   14627-4
BE / BD   19237-7