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Test Code VBG Blood Gases, Venous Blood

Performing Laboratory

Decatur Morgan Hospital-Decatur Campus

Specimen Requirements

Specimen must arrive within 30 minutes of draw.

 

Draw blood in a sodium heparin (NA HEP) tube(s), and send 2 mL of NA HEP whole blood. Place on wet ice immediately after drawing. Forward unprocessed whole blood immediately to respiratory therapy.

 

Reference Values

pH (98.6)

7.32-7.43
Critical values (automatic call-back):  <7.20 or >7.65

PCO2 (98.6)

40-60 mm Hg
Critical values (automatic call-back):  <20 mm Hg or >65 mm Hg
PO2 (98.6)

30-55 mm Hg
HCO3-(ACT)

22-27 mmol/L

BASE EXCESS (VITRO)

±2 mmol/L

LACTATE

0.44-2.22 mmol/L

Critical value (automatic call-back):  >5.0 mmol/L

O2 SATURATION (CALCULATED)

40-85%

 

Test Classification and CPT Coding

82803