Parathyroid Hormone-related Peptide (PTH-rP) (Endocrine Sciences)

CPT: 82397
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  • Parathyroid Hormone-related Protein
  • PTHrp

Expected Turnaround Time

5 - 10 days

Related Documents

Specimen Requirements


Plasma, frozen; plasma with aprotinin (Trasylol®), (Trasylol® acceptable, not required)


1 mL

Minimum Volume

0.5 mL (Note: This volume does not allow for repeat testing.)


Lavender-top (EDTA) tube


Collect into chilled or prefrozen plastic lavender-top (EDTA) tube, noting the time of collection. After venipuncture, immediately invert tube several times to ensure complete mixture. Separate plasma from cells by centrifugation. Separate plasma into a plastic vial, and freeze within 15 minutes of collection. To avoid delays in turnaround time when requesting multiple test on frozen sample, please submit separate frozen specimens for each test requested.

Storage Instructions


Stability Requirements



Room temperature

4 hours


4 hours


1 month

Freeze/thaw cycles

Stable x6

Causes for Rejection

Specimen received at room temperature

Test Details


The PTH-rP assay should not be used to exclude cancer or screen tumor patients for humoral hypercalcemia of malignancy (HHM). The results should always be assessed in conjunction with the patient's medical history, clinical examination, and other findings. If test results are clinically discordant, please contact the laboratory.


Electrochemiluminescence (ECL)


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
503380 PTHrP (PTH-Related Peptide) 15087-0 503381 PTHrP (PTH-Related Peptide) pmol/L 15087-0

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