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HelpCatalog ID PTHRP Parathyroid Hormone-Related Peptide, Plasma
Useful For
Aiding in the evaluation of individuals with hypercalcemia of unknown origin
Aiding in the evaluation of individuals with suspected humoral hypercalcemia of malignancy
The test should not be used to exclude cancer or screen individuals with tumors for humoral hypercalcemia of malignancy.
Specimen Required
Collection Container/Tube: Ice-cooled, lavender top (EDTA)
Submission Container/Tube: Plastic vial
Specimen Volume: 0.7 mL
Collection Instructions:
1. Centrifuge specimen in a refrigerated centrifuge or in chilled centrifuge cups.
2. Aliquot plasma into plastic vial and freeze.
Collect 2.0 mL blood in Purple top tube and place on ice.
Specimen Minimum Volume
0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma EDTA | Frozen | 30 days |
Reference Values
≤4.2 pmol/L
Day(s) Performed
Monday through Thursday
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
82397
Specimen Type
Plasma EDTALOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| PTHRP | PTH-Related Peptide | 15087-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 81774 | PTH-Related Peptide | 15087-0 |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
| Gross icterus | OK |
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Reporting Name
PTH-Related PeptideMethod Name
Immunochemiluminometric Assay (ICMA)
Report Available
2 to 5 daysForms
If not ordering electronically, complete, print, and send a General Request (T239) with the specimen.