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Parathyroid Hormone Related Protein C-Terminal (PTHrP), Plasma

Test ID: PTHRP

Test

Method

Immunoassay

Report Includes

PTH-Related Peptide; Parathyroid Related Polypeptide; Parathyroid Related Protein; PTH Related Protein

Specimens

Plasma (Na heparin)

You must specify "Quest" or "C-Terminal" to order this test.
Please note that PTHrP analysis as a N-Terminal assay is available at Mayo: Parathyroid Hormone Related Peptide N-Terminal (PTHrP), Plasma.

Clinical Utility

Differential diagnosis of hypercalcemia; manage patients with solid tumors and hypercalcemia.

Two PTHrP assays are offered, one targeting the N-terminal peptides (Parathyroid Hormone Related Peptide N-Terminal (PTHrP), Plasma) and the other targeting the C-terminal peptides (Parathyroid Hormone Related Protein C-Terminal (PTHrP), Plasma). The C-terminal fragment may accumulate in patients with renal impairment and the N-terminal fragment clearance is not affected by renal impairment. To avoid detection of excess C-terminal fragments in renal impairment choose the N-terminal assay.
Reference

Test Location

Quest Diagnostics, California USA

Test Version

8-Sep-2023

Specimen

Specimens

Plasma (Na heparin)

You must specify "Quest" or "C-Terminal" to order this test.
Please note that PTHrP analysis as a N-Terminal assay is available at Mayo: Parathyroid Hormone Related Peptide N-Terminal (PTHrP), Plasma.

Collection Containers

Green top (Sodium heparin)

Sample Volume

0.5 mL

Minimum Volume

0.3 mL

Collection & Handling

Handling Information

Separate plasma as soon as possible. Store and send frozen.

Additional Information

You must specify “Quest” or “C-Terminal” to order this test.

Stability

Ambient 7 days
Refrigerated 7 days
Frozen 28 days

Test Version

8-Sep-2023

Performance / Interpretation

Method

Immunoassay

Turnaround Time

10 days

Results

Name Units Reference Range Conversion Factor
PTH-Related Protein (PTHrP) pg/mL
  • 11.0 - 20.0

Test Location

Quest Diagnostics, California USA

Test Version

8-Sep-2023

Interface / Setup

HL7 Interface Codes

Order Code Result Codes Units
PTHRP 38818PTH-RP pg/mL

Test Version

8-Sep-2023