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PTH-Related Protein (PTH-RP) [34478X]
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
PTHRP
Alias/See Also
34478
CPT Codes
83519
Preferred Specimen
0.5 mL plasma (0.3 mL minimum) from 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
Refrigerated
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?)
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: 3-4 days
Reference Range
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
Last Updated: December 6, 2021