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Test Code PTH2 Parathyroid Hormone (PTH), 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 end-stage renal failure patients for possible renal osteodystrophy

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Collection Container/Tube: 

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions: Fasting (12 hours)

Additional Information: 12 hours before this blood test do not take multivitamins or dietary supplements containing biotin or vitamin B7, which are commonly found in hair, skin, and nail supplements and multivitamins.


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Frozen (preferred) 90 days
  Refrigerated  24 hours

Reference Values

15-65 pg/mL

Reference values apply to all ages.

Day(s) and Time(s) Performed

Monday through Friday; 5 a.m.-12 a.m.

Saturday; 6 a.m.-6 p.m.

Test Classification

This test has been cleared or approved 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.

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

Reject Due To

Hemolysis

Mild reject; Gross reject

Lipemia

Mild OK; Gross OK

Icterus

NA

Other

NA

Method Name

Electrochemiluminescence