PTH-Related Peptide; Parathyroid Related Polypeptide; Parathyroid Related Protein; PTH Related Protein
Parathyroid Hormone Related Protein C-Terminal (PTHrP), Plasma
Test
Method
Immunoassay
Report Includes
Specimens
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
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 |
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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