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Test Code PTH2 Parathyroid Hormone, Serum

Reporting Name

Parathyroid Hormone (PTH), S

Useful For

Diagnosis and differential diagnosis of hypercalcemia

 

Diagnosis of primary, secondary, and tertiary hyperparathyroidism

 

Diagnosis of hypoparathyroidism

 

Monitoring kidney failure patients for possible renal osteodystrophy

Method Name

Electrochemiluminescence

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Patient Preparation:

1. For 12 hours before specimen collection, patient should not take multivitamins or dietary supplements (eg, hair, skin, and nail supplements) containing biotin (vitamin B7).

2. Patient should be fasting for 12 hours

Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


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

Reject Due To

Gross hemolysis Reject
Gross lipemia OK

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) Performed

Monday through Saturday

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 US 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.

Report Available

Same day/1 to 2 days

NY State Approved

Yes

Forms

If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.