Test Details
Mnemonic
PHNYF
Ordering Code
1750052
CPT-4 Code(s)
80186
Specimen Information
Collect
Red top
Specimen Preparation
Centrifuge, separate serum from cells and send 3.0 mL serum in a screw capped plastic vial.
Alternate Specimen
Plasma: EDTA, sodium or lithium heparin, oxalate, citrate
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Serum separator tube (SST), whole blood
Stability
Room temperature: Unacceptable
Refrigerated: 30 days
Frozen: 3 months
Refrigerated: 30 days
Frozen: 3 months
Methodology
Enzyme Immunoassay
Reference Range
Therapeutic: 0.8 - 2.0 µg/mL
Toxic: >3.0 µg/mL
Toxic: >3.0 µg/mL
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
Yes