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 |