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HelpTest Code BLDGCV Blood Gases, Venous, Cord Blood
Methodology
Electrochemical Ion-SensorsIncludes pH, pCO2, pO2, and bicarbonate (HCO3).
Used to assess acid-base status.
Note: For hospital patients only.
Performing Laboratory
St. Clair Hospital LaboratorySpecimen Requirements
Specimen must arrive within 1 hour of draw.
1 lithium heparin blood gas syringe (1 mL of lithium heparin cord blood). Syringe should be placed in wet ice slush immediately after draw.
Note: 1. If baby is not listed in computer system, order on requisition using mother’s Address-O-Graph®, but provide baby’s last name and sex (ie, “Smith, Baby Girl”).
2. Label specimen appropriately (venous).
Reference Values
pH: 7.20-7.50 pH unitspCO2: 27-43 mm Hg
pO2: 15-45 mm Hg
HCO3: 15-33 mmol/L