Hereditary Breast Cancer Guidelines-Based Panel, Sequencing and Deletion/Duplication
Also known as: BCGUIDENGS
Use
This test is designed for germline analysis of moderate and high lifetime risk hereditary breast cancer genes, including BRCA1 and BRCA2. It is intended for individuals with a personal or family history of hereditary breast cancer or other related cancers, providing valuable information for risk assessment and management. Testing minors for adult-onset conditions is not recommended, as this requires prior approval. The test includes analysis of several genes associated with an increased risk of breast cancer, facilitating appropriate screening and risk-reducing options in clinical care.
Special Instructions
Not provided.
Limitations
A negative result does not exclude a heritable form of breast cancer due to limitations in detecting variants only within the coding regions and intron-exon boundaries of the targeted genes. Certain exons are not covered by sequencing and/or deletion/duplication analysis. The methodology may not detect deep intronic or regulatory region variants, low-level mosaic or somatic variants, gene conversion events, complex inversions, translocations, or mitochondrial DNA variants. Single exon deletions may not be reliably detected.
Methodology
NGS (Targeted)
Biomarkers
LOINC Codes
- 31208-2 - Specimen source
- 41103-3 - Gene XXX Mut Anl Bld/T
Result Turnaround Time
10-15 days
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
3 mL
Minimum Volume
3 mL
Container
Lavender or pink (EDTA) or yellow (ACD solution A or B) tube
Collection Instructions
Transport 3 mL whole blood. For New York State Clients: Lavender (EDTA)
Storage Instructions
Refrigerated
Causes for Rejection
Serum or plasma; grossly hemolyzed or frozen specimens; saliva; buccal brush or swab, FFPE tissue.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 72 hours |
| Refrigerated | 1 week |
| Frozen | Unacceptable |
Other tests from different labs that may be relevant
