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Test Code UVBG Blood Gases, Umbilical Cord Venous

Important Note

For internal ordering only. Not available to outreach clients.

Synonyms/Keywords

Cord Gas, Venous

Specimen Requirements

Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No Umbilical Cord Blood Heparinized air-tight syringe   1 mL 0.3 mL  

Collection/Processing Instructions

Since the relative acidity and oxygenation status of venous and arterial cord gases are reversed relative to traditional arterial and venous samples, appropriate use of lab ordering codes is essential for physician interpretation.
 

Cord blood gas is to be ordered under the baby's medical history number/name, under the OB provider.

 

Ice pack cooling is not required if the sample is analyzed within 30 minutes.

 

If blood gas analysis will not be performed within 30 minutes after specimen collection, transport sample in a cold pack or prepare a container with ice water capable of maintaining refrigerated temperatures and large enough for immersion of the barrel of the capped/sealed syringe.

Specimen Stability Information

Specimen Type Temperature Time
Whole Blood Ambient 30 min
On Cold Pack 45 min

Rejection Criteria

Tuberculin syringes are not considered to be gas-tight and should be avoided

Test Components

Panel includes Blood Gas (pH, partial pressure of carbon dioxide pCO2, partial pressure of oxygen pO2,  base excess BE)

Reference Range Information

Performing Location Reference Range
All Performing Sites No reference range for this specimen type.

Marshfield Labs Performing Department

Marshfield Labs Urinalysis

Performing Information

Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Beaver Dam Monday through Sunday Less than 2 hours Gem 5000
Weston Monday through Sunday Less than 2 hours Radiometer
Eau Claire Monday through Sunday Less than 2 hours Gem 4000
Rice Lake Monday through Sunday Less than 2 hours Gem 4000
Marshfield Monday through Sunday Less than 2 hours Gem 4000
Minocqua Monday through Sunday Less than 2 hours Gem 4000

CPT Codes

CPT Modifier
(if needed)		 Quantity Description Comments
82803        

Ordering Applications

Ordering Application Description
Cerner Venous Bld. Gases-Umbil.