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Test Code IPTHB Parathyroid Hormone (PTH), Intact, Serum

Important Note

The test code IPTHB is for all uses except STAT intraoperative orders.  IPTHB includes a calcium and must be done on serum


The test code IPTH is for STAT intraoperative orders only.  No calcium is included.  This is done on an EDTA tube to expedite testing. 

Additional Codes

All orders except intra-operative OR:  Epic Code:  LAB813

Intraoperative OR only:   Epic Code:  LAB2202



Performing Laboratory

Bronson Laboratory Services-Chemistry

Reference Values

15-65 pg/mL


Chemiluminescent Immunoassay

Includes total calcium.

Specimen Transport Temperature


Specimen Stability

EDTA Plasma

Room Temperature - 2 days

Refrigerated - 3 days

Frozen - 6 months



Room Temperature - 8 hours

Refrigerated - 2 days

Frozen - 6 months

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding



Specimen Requirements & Patient Preparation

Patient Preparation: For 12 hours before this test do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.   Biotin can interfere with many immunoassay tests.


For STAT/Intraoperative orders

Specimen Type: EDTA Plasma

Container/Tube: Purple
Specimen Volume: 5 mL

Specimen Minimum Volume: 1 mL


For Routine/Diagnostic Orders

SpecimenType: Serum

Container/Tube: Gold or Red

Specimen Volume: 5 mL

Specimen Minimum Volume: 1 mL