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PTH-Related Protein (PTH-RP)
Test Code34478
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
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; Report available: 3-5 days
Reference Range
11-20 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