|
|
Lab Dept:
|
Chemistry
|
Test Name:
|
VENOUS BLOOD GAS (VBG), PUMP
|
General Information
|
Lab Order Codes:
|
VBGP
|
Synonyms:
|
Venous blood gas; Venous pump gas
|
CPT Codes:
|
82803 – Gases, blood, any combination of pH, pCO2, pO2, CO2, HCO3 (including calculated O2 saturation)
|
Test Includes:
|
VpH (no units), VpCO2 and VpO2 measured in mmHg, VsO2 and VO2AD measured in %, HCO3 and BE measured in mmol/L, Temperature (°C) and ST (specimen type)
|
Logistics
|
Test Indications:
|
Useful in determining venous oxygen saturation of the patient during certain procedures such as ECMO or heart surgery.
|
Lab Testing Sections:
|
Chemistry
|
Phone Numbers:
Minneapolis:
Saint Paul:
|
|
612-813-6280
|
651-220-6550
|
Test Availability:
|
Daily, 24 hours
|
Turnaround Time:
|
30 minuts
|
Special Instructions:
|
For use by ECMO or surgery only. Specimen must arrive within 30 minutes of draw.
|
Specimen
|
Specimen Type:
|
Whole blood
|
Container:
|
Preferred: Sims Portex® syringe (PB151) or Smooth-E syringe (956-463)
|
Draw Volume:
|
0.4 mL (Minimum: 0.2 mL) blood
Note: Submission of 0.2 mL of blood does not allow for repeat analysis.
|
Processed Volume:
|
0.2 mL blood per analysis
|
Collection:
|
Specimen is obtained from the ECMO Pump
Draw blood into blood gas syringe. Immediately remove all air from syringe, remove needle, cap tightly, and mix. Send in original collection device. Forward immediately at ambient temperature only. Do Not Expose Specimen To Air.
|
Special Processing:
|
Lab Staff: Do not centrifuge. Specimen should be delivered to blood gas workstation for analysis and analyzed within one hour of collection.
|
Patient Preparation:
|
None
|
Sample Rejection:
|
Clotted sample, mislabeled or unlabeled specimen, sample containine air
|
Interpretive
|
Reference Range:
|
N/A
|
Critical Values:
|
N/A
|
Limitations:
|
N/A
|
Methodology:
|
Ion-Selective Electrode, HCO3 and BE by calculation
|
Contraindications:
|
This test is not indicated for general patient assessment.
|
References:
|
Children’s Hospitals and Clinics ECMO Program, October 2004
|
Update:
|
7/14/2005: Added clarification on draw volume for repeat analysis.
|
