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PTH, Intact and Calcium
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)
**IMPORTANT: CPT Code is informational only; obtain the Test Code for ordering.
PTH: Immunoassay (IA) • Calcium: Spectrophotometry (SP)
|Age||Male (mg/dL)||Female (mg/dL)|
Parathyroid Hormone, Intact
|<6 Years||Not established|
|6-9 Years||9-59 pg/mL|
|10-13 Years||11-74 pg/mL|
|14-17 Years||9-69 pg/mL|
|>17 Years||14-64 pg/mL|
|Hypoparathyroidism||Low or Low Normal||Low|
|Primary||Normal or High||High|
|Secondary||High||Normal or Low|
|Hypercalcemia||Low or Low Normal||High|
The assay is useful in making the diagnosis of primary hyperparathyroidism, secondary hyperparathyroidism, and a differential diagnosis of hypercalcemia. The assay helps in distinguishing hypercalcemia cause by either primary hyperparathyroidism or malignant disease.
Immunoreactive PTH,Sandwich PTH Assay,PTH Whole Molecule,Intact Hormone,Monogram
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.