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Test Catalog
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Familial Hypocalciuric Hypercalcemia (CASR) Evaluation |
#829 |
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| Type of Disorder: |
Parathyroid |
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| Typical Presentation: |
Hypocalciuric hypercalcemia with inappropriately normal or mildly elevated blood levels of parathyroid hormone in individuals of any age |
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| Indications for Testing: |
Asymptomatic persistent hypercalcemia and normal or mildly elevated blood levels of parathyroid hormone
Family history of FHH |
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| Disease(s) tested for: |
Familial Hypocalciuric Hypercalcemia |
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| Test Details |
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| Test Code: |
829 |
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| Informed Consent Required: |
Yes |
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| Medicare ABN Required: |
Yes |
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| Special Notes: |
N/A |
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| Technical Information |
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| Utility: |
Detects mutations (including point mutations, deletions, insertions, and rearrangements) in the coding sequences of CASR |
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| Methodology: |
Polymerase Chain Reaction (PCR), DNA sequencing of entire protein coding region of gene |
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| Reference Value: |
No mutation detected |
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| Patents: |
5,688,938 |
| CPT Coding |
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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.
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| Stacked CPT Code(s): |
83891(1), 83898(11), 83904(11), 83912(1) |
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| Shipping Considerations |
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| Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form. |
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| Preferred Specimen Requirements |
| Type: |
Whole blood |
| Minimum Volume: |
10 ml (pediatric minimum 2mL) |
| Collection Tube: |
Yellow or lavender top |
| Stability: |
Hemolysis may compromise DNA recovery and integrity after 48 hrs |
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| Storage Conditions: |
For short periods (until shipped) at 4oC |
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| Shipping Conditions: |
Overnight at room temperature (specimen arrival must be less than 24 hrs after collection); ship Monday through Thursday only |
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| Test Turnaround: |
2 - 8 weeks |
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