PTH-Related Protein (PTH-RP) [34478X]

Test Code
34478

CPT Codes
83519

Preferred Specimen
0.5 mL plasma collected in a sodium heparin (green-top) tube

Minimum Volume
0.3 mL

Instructions
Centrifuge the specimen as soon as possible. Transfer the plasma to a plastic, screw-capped vial. Mark the specimen type as "plasma" on the transport tube. Do not submit unspun tubes.

Transport Container
Plastic screw-cap vial

Transport Temperature
Room temperature


Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Whole blood

Methodology
Immunoassay (IA)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule
Set up: Tues-Fri a.m.; Report available: 2-3 days

Reference Range
14-27 pg/mL

Clinical Significance
Differential diagnosis of hypercalcemia; manage patients with solid tumors and hypercalcemia.

Performing Laboratory
Quest Diagnostics Nichols Inst San Juan Capistrano
33608 Ortega Highway
San Juan Capistrano, CA 92675



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.