Test Details
Mnemonic
PHGB
Ordering Code
3422340
CPT-4 Code(s)
83051
Specimen Information
Collect
Green sodium heparin
Specimen Preparation
Separate plasma from cells within 1 hour of collection and send 1.0 mL plasma in a screw capped plastic vial. DO NOT FREEZE SPECIMENS.
Alternate Specimen
Plasma: Lithium heparin
Minimum Volume
0.2 mL
Transport Temperature
Refrigerated
Rejection Criteria
Sodium citrate
Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: Unacceptable
Refrigerated: 7 days
Frozen: Unacceptable
Methodology
Colorimetric
Reference Range
<8.4 mg/dL
Performing Laboratory
Quest SJC
New York DOH Approval Status
Yes