ARUP's Laboratory Test Directory

Parathyroid Hormone, Intact : 0070346

Mnemonic: PTH-INT

Methodology: Quantitative Electrochemiluminescent Immunoassay
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect: Lavender (EDTA) or pink (K2EDTA). Also acceptable: Green (sodium or lithium heparin) or serum separator tube.
Do not collect in EDTA if ordering Parathyroid Hormone Intact Molecule with Calcium (ARUP test code 0070172).


Specimen Preparation: Allow serum specimen to clot fully at room temperature. Transfer 2 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature: Frozen. Separate specimens must be submitted when multiple tests are ordered.

Remarks: If requesting Ionized Calcium with PTH, submit two separate specimens. Refer to Calcium, Ionized, Serum (ARUP test code 0020135) for requirements.

Unacceptable Conditions: Body Fluid (refer to Parathyroid Hormone, FNA, ARUP test code 2001491). Urine.

Stability (collection to initiation of testing): After separation from cells: Ambient: 8 hours; Refrigerated: 48 hours; Frozen: 6 months

Reference Interval:
15-65 pg/mL
Note: Test includes prompt for calcium, so clients can provide their own calcium results.
CPT Code(s): 83970
Cross References: Parathormone (Parathyroid Hormone, Intact), PTH Intact Molecule (Parathyroid Hormone, Intact)