PTH-Related Protein (PTH-rP)

Message

VERIFY ORDER. OFTEN MISORDERED FOR PTHI - Parathyroid Hormone Intact.

Test Code

PTHRP

Quest Code

34478Z

Alias/See Also

34478

CPT Codes
83519

Preferred Specimen

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

Minimum Volume

0.3 mL

Instructions

Sodium heparin tubes: Centrifuge the specimen as soon as possible.
Transfer the plasma to a transport tube. Mark the specimen type as plasma on the transport tube. Do not submit unspun tubes.

Transport Temperature

Refrigerated

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

A.M.

Reference Range

11-20 pg/mL

Clinical Significance

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

Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

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.