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General Information:

Web Links:

Mayo Clinic Laboratories

Test Code LAB0293662 Blood Gases, Arterial Cord Blood

Methodology

Electrode Methodology
Includes pH, pCO2, pO2, bicarbonate (HCO3), base excess, and % O2 saturation.

Performing Laboratory

CentraCare Laboratory Services

Specimen Requirements

Specimen Type: Arterial cord blood

Container/Tube: Heparinized blood gas syringe

Collection Instructions:

1. Immediately mix and send in syringe.

2. Avoid exposure of specimen to atmosphere.

Specimen Transport Temperature

Ambient

Reference Values

pH: 7.20-7.36 units
Critical values (automatic call-back): ≤7.25 units or ≥7.60 units


pCO2: 47.8-63.0 mm Hg
Critical values (automatic call-back): ≤20 mm Hg or ≥70 mm Hg


pO2: 11.4-20.6 mm Hg
Critical value (automatic call-back): ≤50 mm Hg


HCO3: 22-26 mmol/L
Critical values (automatic call-back): ≤14 mmol/L or ≥40 mmol/L

 

Base excess: -2.0 to 3.0 mmol/L
% O2 saturation: 95-98%

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82803