Test Overview
Test Methodology
Immunochemiluminometric Assay (ICMA)
Test Usage
Diagnosis of humoral hypercalcemia of malignancy (HHM) in patients with hypercalcemia and nonelevated PTH. When a patient with HHM has an increased PTHrP value, this test is useful to monitor treatment.
Reference Range *
< or = 4.2 pmol/L
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Monday - Thursday
Analytic Time
3 - 6 days
Soft Order Code
PTHRP
MiChart Code
PTH-Related Peptide
Synonyms
- Parathyroid Hormone Related Peptide
- Parathyroid Related Protein
- PTHrP
- PTH Related Peptide
Laboratory
Sendout
Reference Laboratory
Mayo PTHRP (81774)
Section
Special Testing
Specimen Requirements
Collection Instructions
Collect specimen in a chilled lavender top tube. Immediately following collection, centrifuge in a refrigerated centrifuge or chilled centrifuge cups, aliquot plasma into a plastic vial and freeze.
Special Handling
Collect in pre-chilled tube and place on ice immediately.
Normal Volume
0.7 mL EDTA plasma
Minimum Volume
0.25 mL EDTA plasma
Additional Information
Test sent to Mayo Medical Laboratories
Billing
CPT Code
82397
Fee Code
32127
LOINC
15087-0