Ordering Recommendation
Mnemonic
PTH-INT
Methodology

Quantitative Electrochemiluminescent Immunoassay

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Lavender (EDTA) or pink (K2EDTA). Also acceptable: Green (sodium or lithium heparin) plain red or serum separator tube.

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.

Unacceptable Conditions

Body Fluid (refer to Parathyroid Hormone, FNA, ARUP test code 2001491); Urine. Rapid Serum Tubes (RST).

Remarks

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

Stability

After separation from cells: Ambient: 8 hours; Refrigerated: 48 hours; Frozen: 6 months

Reference Interval

15-65 pg/mL

Interpretive Data



No compliance statements are in use for this test.

Note

This test is appropriate for patients who have already had recent testing for calcium values and would like results graphed. Previous calcium values must be submitted with the test order; otherwise, a generic result will be provided. If calcium values are not available and a graphed result is desired, do NOT collect in EDTA and order Parathyroid Hormone, Intact with Calcium (ARUP test code 0070172). If requesting Ionized Calcium with PTH, submit two (2) separate specimens. Refer to Calcium, Ionized, Serum (ARUP test code 0020135) for requirements.

Hotline History
N/A
CPT Codes

83970

Components
Component Test Code* Component Chart Name LOINC
0070346 Parathyroid Hormone, Intact 2731-8
0097086 Parathyroid Hormone, Client Calcium Rslt 17861-6
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Intact PTH
  • Parathormone
  • PTH
  • PTH Intact Molecule
Parathyroid Hormone, Intact