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Test Code BGNV Blood Gases, Neonatal, Venous Blood

Methodology

Electrochemical Ion-Sensors/Co-Oximetry
Includes pH; pCO2; pO2; bicarbonate (HCO3); hemoglobin (Hgb), total; measured O2 saturation (SO2); oxyhemoglobin (FO2 Hb); and O2 content.
Used to assess acid-base status.

Performing Laboratory

St. Clair Hospital Laboratory

Specimen Requirements

2 heparinized blood gas capillary tubes. Tubes should be placed in wet ice slush immediately after draw.

Reference Values

pH:  7.32-7.43 pH units
pCO2:  38-42 mm Hg
pO2:  38-50 mm Hg
HCO3:  19-27 mmol/L
O2 content:  no established reference values
FO2 Hb:  no established reference values
Hgb, TOTAL
0-1 week:  15.0-22.5 g/dL
1 week-1 month:  15.4-20.5 g/dL
>1 month:  10.7-17.1 g/dL

SO2:  no established reference values

Day(s) Test Set Up

Monday through Sunday