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PTH Intact Analyzer (Parathyroid Hormone)

Order Name PTH
Test Number: 5577075
Revision Date 05/28/2021
Test Name Methodology LOINC Code
Arsenazo 17861-6 
PTH Intact
Chemiluminescence Assay 2731-8 
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1mL (0.5 Plasma and Serum Each) Plasma and Serum EDTA (lavender top) and Clot Activator SST See Instructions
Instructions Collect Both EDTA Lavender and Clot Activator SST.
It is preferred that the EDTA specimen be separated into plasma and frozen if testing is not going to be performed within 8 hours of collection of the specimen.
EDTA Plasma Stability is Ambient 8 hours, Refrigerated 2 days, Frozen 6 months.
Serum or Heparin Plasma Stability is Ambient 7 days, Refrigerated 3 weeks, Frozen 8 months.
If submitting aliquot tubes, please mark each aliquot tube correctly with EDTA Plasma or Serum.
Serum for calcium can be used from serum collected with other general chemistry tests.
Heparin Plasma is also acceptable for calcium.
Testing Schedule Mon-Fri 
Expected TAT 1-3 days  
Clinical Use Useful in the differential diagnosis of hypercalcemia and parathyroid disorders. 
Notes This analyzer has a result driven interpretative comment included in the report that is specific for this individual.
For more information on this Analyzer, access our "Specialized Tests" section of this guide for a complete listing of tests and CPT codes.
CPT Code(s) 83970
Lab Section Chemistry