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Collection Instructions

Unity Point Health - Cedar Rapids

Website:

Mayo Medical Laboratories

Mayo Clinic Laboratories

Test Code UVBG Blood Gases, Umbilical Vein

Additional Codes

 Test ID
UVBG

EPIC Test ID
LAB2471

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

Container/Tube:

Preferred: Heparinized syringe with venous cord blood.

Specimen Volume: 65 uL venous cord blood

Stability: Samples should be run within 30 min.

Collection Instructions: Specimen must be kept as anaerobic as possible.

 

Reference Values

pH: 7.28-7.44 units

Critical pH:  <7.00

pCO2: 31-57 mm Hg

pO2: 14-37 mm Hg

Base excess:  -10.0 to -2.0 mmol/L
HCO3: 18.5-29.9 mmol/L
CO2: 21.0-29.0 mmol/L

% O2 saturation: no reference range established

Day(s) Test Set Up

Monday through Sunday

Useful For

Umbilical cord gases are usually performed for the assessment of either the acid-base status or the respiratory oxygenation status of a newborn infant.

Methodology

Potentiometric Sensors: Includes pCO2 and pH.

Amperometric Sensors: Includes pO2.

Test Classification and CPT Coding

82803

Report Available

Within 15 minutes of receipt