Parathyroid hormone-related peptide (PTH-rP)

Alphabetical Test listing

Parathyroid hormone-related peptide (PTH-rP)-13431

Parathyroid hormone-related peptide (PTH-rP)
Parathyroid hormone-related protein

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.

EDTA plasma

Lavender (EDTA), 4mL chilled, or pre-frozen

1.0 mL
0.5 mL
Submission of the minimum volume does not allow for repeat testing
  1. Prechill a plastic lavender-top (EDTA) tube
  2. Immediately after collection, mix tube thoroughly by gentle inversion, 8 - 10 times, to prevent clotting
  1. Spin immediately
  2. Transfer plasma into a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp) labelled as EDTA plasma
  3. Freeze within 15 minutes of collection


Plasma with aprotinin (Trasylol) acceptable, but not required

Frozen (preferred) - 1 month

Freeze/thaw cyc;es - stable x6

Refrigerated - 4 hours

Ambient - 4 hours

  • Specimen received at room temperature
Esoterix Endocrinology (500333) via LabCorp (503380): R-LC
Tu - Sa
10 days

Electrochemiluminescence (ECL)


< 2.0 pmol/L

Result 15087-0