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Test Code BLOD0983 Parathyroid Hormone (PTH), Intact




PTH is secreted by the parathyroid gland and aids in maintenance of ionized calcium. It is used in management of renal patients. Intact PTH is the biologically active portion of PTH.

Performing Laboratory

Bozeman Health Laboratory Services

Specimen Requirements

Specimen Type: EDTA Whole Blood (preferred) or Serum

Container/Tube: Lavender top (EDTA), gold top, or red top

Specimen Volume: 4 mL Whole Blood

Specimen Minimum Volume: 1 mL EDTA plasma or serum

Collection Instructions:  Spin down and separate EDTA plasma within 20 hours of collection.  Label as EDTA plasma.  Separate serum within 4 hours of collection.



Specimen Transport Temperature


Specimen Stability


Specimen Type Temperature Time
EDTA Whole Blood Ambient 8 hours
  Refrigerated 8 hours
Plasma (EDTA) Ambient 8 hours
  Refrigerated 72 hours
  Frozen 1 month
Serum Ambient 4 hours
  Refrigerated 48 hours


Reference Values

14-85 pg/mL


Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding