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Test Name

PTH, Intact (ICMA) and Ionized Calcium

CPT Code(s)

82310, 82330, 83970

Includes

PTH Intact, Calcium, Ionized Calcium

Methodology

PTH: Immunoassay (IA) • Calcium: Spectrophotometry (SP) • Ionized Calcium: Ion Specific Electrode (ISE)

Reference Range(s)

See Laboratory Report

Clinical Significance

The hormone Parathyroid Hormone (PTH) acts to increase serum calcium and 1-, 25- dihydroxyvitamin D concentrations, while decreasing phosphorus. Cross-reactivity with fragment 7-84 may occur in patients with renal insufficiency. The BioIntact PTH assay is considered the most reliable.  Parathyroid function is related to the calcium concentration so both results should be interpreted together.

To view specimen requirements and codes please Select a regional laboratory.

Not sure which laboratory serves your office? Call us 866-MYQUEST (866-697-8378)

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided 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 payer being billed.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

36736X
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43555
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1396
36736
PTH, Intact (ICMA) and Ionized Calcium
36736