Sign in →

Test Code PTH Parathyroid Hormone, Intact (PTH)

Performing Laboratory

Hunterdon Medical Center Laboratory

Test Includes

PTH and Calcium

Useful For

Intact Parathyroid Hormone (PTH) is useful in the differential diagnosis of hyperparathyroidism, hypoparathyroidism, or hypercalcium malignancy.

Specimen Required

Two specimens required:

  •  PTH
Container/Tube  
Preferred Lavender Top (K₂EDTA)
Acceptable SST
Specimen Volume  3.0mL
Minimum Volume  1.0mL
  • Calcium
Container/Tube  
Acceptable  PST (Li Hep) Gel- Mint Green Top
Acceptable  SST
Specimen Volume  3.0mL
Minimum Volume  1.0mL

 

Specimen Type

Two specimens:

EDTA plasma (for PTH) and Li Heparin plasma or SST serum (for Calcium).

Specimen Transport Temperature

Ambient

Specimen Stability PTH

  • K2EDTA specimen, Lav Top Tube: Whole blood and Plasma                                            
Temperature Time Frame
Ambient 15-25°C 2 days
Refrigerated 2-8°C 3 days
  • SST/Red Top: Must be separated within 2 hours
Specimen Temperature Time Frame
Serum-gel tube Refrigerated 2-8°C 2 days

Updated June 2020 

Day(s) Test Set up

Monday through Sunday

Reference Values

PTH: 15.0-65.0 pg/mL

 

Methodology

ECLIA: Electrochemiluminescence immunoassay

CPT Code

83970

Loinc Code

2731-8

Related Tests