PTH, Intact and Calcium

PTH, Intact and Calcium

Test Code

8837
82310, 83970
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
8837
82310, 83970
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.

Clinical Significance

PTH, Intact and Calcium - 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.

Test Resources

Test FAQ

Biotin: Interference with Laboratory Assays

Test FAQ

PTH, Intact and Calcium

Algorithm

Testing Algorithm for Hyperparathyroidism and/or Hypercalcemia

Algorithm

Testing for Comorbidities and Complications of Chronic Kidney Disease

Clinical Focus

Parathyroid Dysfunction: Laboratory Testing for Diagnosis and Management

Test Guide

Laboratory Testing for Chronic Kidney Disease Diagnosis and Management

Test Details

Methodology

PTH: Immunoassay (IA) • Calcium: Spectrophotometry (SP)

Alternative Name(s)

Intact Hormone,Immunoreactive PTH,Sandwich PTH Assay,Monogram,PTH Whole Molecule

LOINC® Codes, Performing Laboratory

Service Area must be determined

Methodology

PTH: Immunoassay (IA) • Calcium: Spectrophotometry (SP)

Alternative Name(s)

Intact Hormone,Immunoreactive PTH,Sandwich PTH Assay,Monogram,PTH Whole Molecule
Service Area must be determined

Preferred Specimen(s)

1.5 mL plasma collected in EDTA (lavender-top) tube for the PTH, Intact and 1 mL serum for the Calcium

Alternative Specimen(s)

2 mL (1 mL minimum) frozen serum for PTH, Intact

Minimum Volume

1 mL EDTA plasma for PTH, Intact • 0.5 mL serum for Calcium

Transport Container

Transport tube

Reject Criteria

Gross hemolysis • Grossly lipemic • Plasma submitted in sodium heparin (green-top) tube or lithium heparin (green-top) tube

Setup Schedule, Collection Instructions, Transport Temperature, Specimen Stability

Service Area must be determined
1.5 mL plasma collected in EDTA (lavender-top) tube for the PTH, Intact and 1 mL serum for the Calcium
2 mL (1 mL minimum) frozen serum for PTH, Intact
1 mL EDTA plasma for PTH, Intact • 0.5 mL serum for Calcium
Transport tube
Gross hemolysis • Grossly lipemic • Plasma submitted in sodium heparin (green-top) tube or lithium heparin (green-top) tube
Service Area must be determined
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.
Test Details

Clinical Significance

Test Resources

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 guidance 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.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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