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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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| CPT Code(s): |
83891(1), 83898(11), 83904(11), 83912(1) |
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| Patents: |
5,688,938 |
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| Shipping Considerations |
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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: |
14-21 days |
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