Test Details
Mnemonic
NORDZ
Ordering Code
1751020
CPT-4 Code(s)
80346 (G0480)
Specimen Information
Collect
Red top
Specimen Preparation
Centrifuge and separate serum from cells within 2 hours. Send 1.0 mL serum in a screw capped plastic vial.
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Serum separator tube (SST)
Stability
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 14 days
Refrigerated: 7 days
Frozen: 14 days
Methodology
High Performance Liquid Chromatography
Reference Range
Therapeutic: 100 - 1000 ng/mL
Toxic: >3000 ng/mL
Toxic: >3000 ng/mL
Performing Laboratory
WARDE MEDICAL LABORATORY
New York DOH Approval Status
No