Casandra
Casandra Test Code QD77189Version 1 (DRAFT)
Performing Lab
Huntington Disease Mutation Analysis
Also known as: (CAG)n expansion, HD, Huntington chorea
Clinical Use
Order TestUse
Not provided.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
PCR-based (PCR)
Biomarkers
HTT
GeneCAG repeat expansion • Mutation • Categorical (e.g., Positive / Negative / Indeterminate)
Result Turnaround Time
14 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Whole Blood
Volume
5 mL (3 mL minimum)
Minimum Volume
3 mL
Container
EDTA (lavender‑top) tube
Collection Instructions
Whole blood: Normal phlebotomy procedure. Specimen stability is crucial. Store and ship ambient immediately. Do not freeze.
Storage Instructions
Store and ship ambient immediately. Do not freeze.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 8 days |
| Refrigerated | 8 days |
| Frozen | Unacceptable |
Related Tests
Other tests from different labs that may be relevant
Huntington Disease via the HTT CAG Repeat Expansion
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Huntington Disease Repeat Expansion Analysis
Baylor Genetics
Huntington Disease, Molecular Analysis, Varies
Mayo Clinic Lab
Huntington Disease (HD) CAG Repeat Expansion
ARUP Laboratories
Huntington Disease (HTT) Genetic Testing (Repeat Expansion)
Labcorp