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Test Code BGNA Blood Gases, Neonatal, Arterial 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

Call St. Clair Hospital Laboratory for collection instructions.

 

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

Reference Values

pH:  7.29-7.45 pH units
pCO2:  27-40 mm Hg
pO2:  54-95 mm Hg
HCO3:  16-24 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

0-1 day:  40-90%

>1 day:  95-98%

Day(s) Test Set Up

Monday through Sunday