Ordering Recommendation

Use to evaluate calcium dysregulation.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation
Collect

Plain red or serum separator tube.

Specimen Preparation

Allow serum specimen to clot fully at room temperature before centrifuging. Transfer 2 mL serum 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). Specimens collected in EDTA. Rapid serum tubes (RST). Hemolyzed samples. Grossly lipemic samples.

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

Methodology

Quantitative Electrochemiluminescent Immunoassay (ECLIA)

Performed

Sun-Sat

Reported

Within 24 hours

Reference Interval

Test Number
Components
Reference Interval
  Calcium for Parathyroid Hormone, Intact
Age
Reference Interval (mg/dL)
0 - 10 days 7.6-10.4
10 days - 2 years 9.0-11.0
2 -12 years 8.8-10.8
12 - 18 years 8.4-10.2
18 - 60 years 8.6-10.0
60 - 90 years 8.8-10.2
greater than 90 years 8.2-9.6

  Parathyroid Hormone, Intact 15-65 pg/mL

Interpretive Data



Compliance Category

FDA

Note

Hotline History

N/A

CPT Codes

83970; 82310

Components

Component Test Code* Component Chart Name LOINC
0070163 Calcium for Parathyroid Hormone, Intact 17861-6
0070346 Parathyroid Hormone, Intact 2731-8
* 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

  • CA and PTH
  • Intact PTH
  • Parathormone
  • PTH and CA
  • PTH intact
  • PTH Intact Molecule with Calcium
Parathyroid Hormone, Intact with Calcium