Cooximetry Panel, Venous

General Information

Lab Name
Cooximetry Panel, VEN
Lab Code
VCX
Epic Name
Cooximetry Panel, Venous
Synonyms
Methemoglobin-Venous, SVO2-Venous
Components

Interpretation

Method
Spectrophotometry
Reference Range
See individual components
Interferences and Limitations
Methylene blue will interfere with measurement of venous or arterial methemoglobin for approximately 24 hours after administration. Measurements made less than a day after methylene blue therapy is given may give falsely low results for methemoglobin.

Ordering & Collection

Specimen Type
Venous blood
Collection
Venous blood collected into a balanced heparinized syringe such as the 2 mL Radiometer PicoTM or 3 mL Smiths Portex Pro-Vent syringes.
Handling Instructions
Needles must be removed from syringes and replaced with caps before sending to the lab.  No air bubbles. Transport to Lab Immediately.
Note:  The Laboratory MUST assay specimen within 30 minutes of blood collection.
Quantity
Requested: Full Syringe
Minimum: 0.5 mL Venous whole blood

Processing

Receiving Instructions
Log in as STAT, deliver to Blood Gas Bench IMMEDIATELY
Misc Sendout

Performance

Lab Department
Chemistry, Whole Blood(CHW)
Frequency
Daily
Available STAT?
Yes
Performing Location(s)
HMC Chemistry, Automated
206-520-4600

325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420

UW-NW Main Lab
206-668-1344

UW Medical Center – Northwest
1550 N 115th Street, A200
Seattle, WA 98133

UW-MT Chemistry, Blood Gas
206-520-4600

Clinical Lab, Room NW220,
University of Washington Medical Center,
1959 NE Pacific street, Seattle, WA 98195

Billing & Coding

CPT Codes
82375, 82810, 83050, 85018
LOINC
24344-4