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HelpTest ID PTH2 Parathyroid Hormone, Serum
Useful For
Diagnosis and differential diagnosis of hypercalcemia
Diagnosis of primary, secondary, and tertiary hyperparathyroidism
Diagnosis of hypoparathyroidism
Monitoring end-stage renal failure patients for possible renal osteodystrophy
Method Name
Electrochemiluminescence
Reporting Name
Parathyroid Hormone (PTH), SSpecimen Type
SerumSpecimen Required
Patient Preparation:
1. For 12 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.
2. Patient should be fasting for 12 hours
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Specimen Minimum Volume
0.75 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Frozen (preferred) | 180 days | |
| Refrigerated | 72 hours | ||
| Ambient | 8 hours |
Reference Values
<1 month: 7.0-59 pg/mL
4 weeks-11 months: 8.0-61 pg/mL
12 months-10 years: 11-59 pg/mL
11 years-17 years: 15-68 pg/mL
18 years and older: 15-65 pg/mL
Day(s) and Time(s) Performed
Monday through Friday; 5 a.m.-12 a.m.
Saturday; 6:30 a.m.-5 p.m.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83970
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| PTH2 | Parathyroid Hormone (PTH), S | 2731-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| PTH2 | Parathyroid Hormone (PTH), S | 2731-8 |
Test Classification
This test has been cleared, approved or is exempt by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.NY State Approved
YesForms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.