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Intact PTH (Parathyroid Hormone)

Message
Performed in the Chemistry Laboratory, x5820
10.2018


Test Code
PTH


Alias/See Also
IPTH
R PTH


CPT Codes
83970

Includes
Reflex plasma Calcium assay


Preferred Specimen
Plasma from a green top (PST) tube


Minimum Volume
0.5 mL


Transport Container
Green Top (PST) tube


Transport Temperature
Room temperature


Specimen Stability
2 - 8 oC: 2 days


Methodology
Chemiluminescent Microparticle Immunoassay

Setup Schedule
This assay is performed 24 hours per day, 7 days per week


Limitations
Take into account plasma calcium level


Reference Range
11 - 95 pg/mL


Clinical Significance
This test is used to aid in the differential diagnosis of hyperparathyroidism, hypoparathyroidism, or hypercalcemia of malignancy.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.