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HelpTest Code LAB4030 BLOOD GAS, UMBILICAL CORD
Specimen Type
Umbilical Cord
Collection Instructions
Approximatly 20cm umbilical cord specimen between two clamps. If specimen cannot be delievered to lab within 30 min, must place the umbilical cord specimen on ice.
Specimen Volume
5 inches
Minimum Volume
1 inch
Turnaround Time
STAT: 1 hour
Routine: 4 hours
Test Schedule
Daily
Sample Stability
Room Temp: 0.5 hour (at 20-25°C)
On Ice: 2 hours (at 2-8°C)
Specimen Processing
Collect specimen into a heparinized syringe, expel excess air from syringe, and analyze immediately after collection.
Method
Ion Transfer Electrode/Potentiometry/Co-oximeter
Reference Ranges
| TEST |
UMBILICAL ARTERIAL BLOOD |
UMBILICAL VENOUS BLOOD |
|---|---|---|
| pH | 7.16 - 7.36 | 7.28 - 7.40 |
| pCO2 mmHg | 33-49 | 28-40 |
| P02 mmHg | 11 - 19 | 21 - 31 |
|
BASE EXCESS |
1.2 - 2.0 | 1.1 - 1.5 |
Synonyms
UCBG, Cord Gases, Arterial Cord Gases, Venous Cord Gases
CPT Codes
82803