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Test Code VBG Pre Ox + O2 Sat Venous Blood Gas + O2 Sat, PRE oxygenator

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 + O2 Sat, PRE oxygenator


VBG Pre OX + O2 Sat

PRE oxygenator VBG + O2 Sat

VBG Pre oxygenator + O2 Sat

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.



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



STAT Performed TAT
Y 24/7 15 M


Performing Laboratory

Seattle Children's Laboratory    


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.



Age % Saturation
0-1 Day 85-90
> 1 Day 95-98


Infant saturation values are slightly lower


Method: Potentiometric method by SIEMENS RAPIDPOINT 500

Analytical Volume: 0.2 mL

CPT Codes

82803 + 82810

Critical Values


Age pH
All Ages


≥ 7.60



Age pCO2 (mmHg)
All Ages


≥ 70



Age HCO3 (mmol/L)
All Ages


≥ 40