Parathyroid Hormone-Related Peptide (PTHrP)
Ordering Recommendation
Aid in the evaluation of unexplained hypercalcemia, particularly in suspected hypercalcemia of malignancy.
Submit With Order
Quantitative Immunoradiometry
Wed, Thu, Sat
2-6 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Protease Inhibitor tube (PPACK; Phe-Pro-Arg-cholormethylketone).  
Specimen Preparation
Protease Inhibitor tube (ARUP supply #49662), available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787. A winged collection set must be used. NOT RECOMMENDED: Filling collection tubes directly through a needle/tube-holder assembly increases the risk of chemical reflux back into the vein of the patient. WARNING: Collection tubes are NOT STERILE. Mix Collection tube thoroughly. Separate the plasma from cells within 1 hour of collection by centrifugation. Transfer 1 mL plasma to an ARUP Standard Transport Tube and freeze. (Min: 0.5 mL) Do not submit the collection tube for testing.  
Storage/Transport Temperature
Frozen. Separate specimens must be submitted when multiple tests are ordered.  
Unacceptable Conditions
Grossly hemolyzed specimens.  
After separation from cells: Ambient: Unacceptable; Refrigerated: 72 hours; Frozen: 3 months  
Reference Interval
Effective August 20, 2012

0.0-4.0 pmol/L
Interpretive Data

See Compliance Statement D:
CPT Code(s)
Component Test Code*Component Chart Name
0093016Parathyroid Hormone Related Peptide
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Cross References
  • HHM, Parathyroid Hormone Related Peptide
  • Humoral Hypercalcemia of Malignancy Factor
  • Parathyroid Hormone Related Protein
  • Parathyroid Related Polypeptide
  • Parathyroid Related Protein
  • PRP
  • PTH Related Peptide
  • PTH Related Protein
  • PTH-RP
  • PTHrP secretion
  • PTHRP, Plasma