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

Test info

Test name:

Parathyroid hormone-related peptide (PTH-rP)

Test number:

13431

Excellian order number:

LAB13431

Abbreviation:

PTHRP

Alternate names:

Parathyroid hormone-related protein
PTHrp

Limitations:

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.

Specimen

Specimen type:

EDTA plasma

Collection container:

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

Volume:

1.0 mL

Minimum volume:

0.5 mL
Submission of the minimum volume does not allow for repeat testing

Collection instructions:

Prechill a plastic lavender-top (EDTA) tube
Immediately after collection, mix tube thoroughly by gentle inversion, 8 - 10 times, to prevent clotting

Processing instructions:

Spin immediately
Transfer plasma into a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp) labelled as EDTA plasma
Freeze within 15 minutes of collection

Transport container:

Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)

Alternate specimen type:

Plasma with aprotinin (Trasylol) acceptable, but not required

Alternate collection container:

Trasylol collection kit

Transport and stability:

Frozen (preferred) - 1 month

Freeze/thaw cyc;es - stable x6

Refrigerated - 4 hours

Ambient - 4 hours

Reason for rejection:

Specimen received at room temperature

Performance

Performing lab:

Esoterix Endocrinology (500333) via LabCorp (503380): R-LC

Days set up:

Tu - Sa

TAT:

10 days

Method:

Electrochemiluminescence (ECL)

Clinical and Interpretive info

Reference ranges:

< 2.0 pmol/L

Billing

CPT codes:

82397

LOINC code:

Result 15087-0

Tracking

Date created:

04/10/2019

Revised date:

12/20/2023

Review date:

12/20/2023