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Test Code VBG Venous Blood Gas

Important Note

Place specimen in outside pocket of a pre-filled biohazard bag of ice, then put into a separate biohazard bag for transport.

Clinical System Name

Venous Blood Gas

Synonyms

pH Blood Venous
 

Sample Requirements

Specimen:  Whole Blood

Container(s): Heparinized Syringe

Preferred Vol: 1.0 mL

Minimum Vol: 0.8 mL

 

Note: Deliver to the Lab immediately. Remove all air bubbles. Ideally, whole blood specimens should be analyzed within 15 minutes of blood draw.

Processing Instructions

Reject due to: Inadequately filled specimens, air bubbles, visible clots, age of specimen

Spin: N

Aliquot: N

Temp: RT

Storage location: Deliver samples to Core Lab gas bench.

 

Off-site collection:  Sample must be collected at Children's. Please contact Laboratory (206) 987-2102 for additional information.

Stability

 

Specimen Type Temperature Time
Heparinized Syringe RT ≤ 15 min.
Heparinized Syringe 0-4o C 30 min.
Heparinized Syringe -20o C or -70oC No

 

Availability

STAT Performed TAT
Y 24/7 15 M

 

Performing Laboratory

Seattle Children's Laboratory    

Department

Department:  Chemistry - Core

Phone Number: 206-987-2617

Reference Range

 

pH 7.32 - 7.42
pCO2 41 - 51 mm/Hg
pO2 25 - 40 mm/Hg

All values are for venous samples.
 

Methodology

Method: Potentiometric method by SIEMENS RAPIDPOINT 405

Analytical Volume: 0.2 mL

CPT Codes

82803

Critical Values

 

Age pH
All Ages

7.20

≥ 7.60

 

 

Age pCO2 (mmHg)
All Ages

20

≥ 70

 

 

Age HCO3 (mmol/L)
All Ages

10

≥ 40