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BRCA1 Del/Dup Testing by MLPA
BRCA1 Del/Dup Testing by MLPA
BRCA1 Del/Dup Testing by MLPA
This assay detects copy number changes in the BRCA1 gene, which is associated with breast and ovarian cancer.
| Test Code | D5236 |
|---|---|
| Test Summary |
This assay detects copy number changes in the BRCA1 gene, which is associated with breast and ovarian cancer. |
| Turn Around Time | 12 days |
| Acceptable Sample Types | DNA, Isolated , Dried Blood Spots , Saliva , Whole Blood (EDTA) |
| Acceptable Billing Types | Institutional Billing , Self (patient) Payment |
| NY Approved | No |
| CPT Codes** | 81166(x1) |
**The CPT codes listed are in accordance with Current Procedural Terminology, a publication of the American Medical Association, and are provided for informational purposes only. CPT coding is the sole responsibility of the billing party.
This testing service has not been cleared or approved by the U.S. Food and Drug Administration. Testing services may not be licensed in accordance with the laws in all countries. The availability of specific test offerings is dependent upon laboratory location.
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Test information
Test description
Multiplex Ligation-Dependent Probe Amplification (MLPA) detects the deletion and duplication of single and multiple exons within a given gene (PMID: 20938835). It is a semi-quantitative technique to determine relative copy number using a multiplex PCR-based reaction. Only hybridized and ligated adjacent probe oligonucleotides are amplified by PCR, thus specific for the sequence of interest. This test involves copy number analysis of the BRCA1 gene.
Condition description
Breast and ovarian carcinomas are among the most common malignancies in developed countries. The BRCA1 and BRCA2 proteins are associated with the activation of double-strand break repair and homologous recombination and are essential in maintaining genomic stability. BRCA1 and BRCA2 genes account for about 20 to 25% of hereditary breast cancers and about 5 to 10% of all breast cancers. Mutations in the BRCA1 and BRCA2 genes also account for around 15% of ovarian cancers.
Genes
Test methods and limitations
MLPA-based assay for detecting deletions/duplications in the BRCA1 gene. The MRC-Holland reagent kits and the Applied Biosystem 3730xl DNA Analyzer instrument generate fragment analysis data.
Detailed sample requirements
DNA, Isolated
| Collection |
Required DNA Quantity by Test Type*:
|
|---|---|
| Sample Condition |
* Required DNA Quality: High molecular weight DNA (>12kb). A260/A280 reading should be ≥ 1.8. A260/230 a ratio range of 1.8 to 2.2. Contact the laboratory for specific amounts if total ng cannot be met. |
| Shipping |
Ship overnight at ambient temperature. |
| SPECIAL SAMPLE INSTRUCTIONS |
|
Whole Blood (EDTA) (Preferred Sample)
| Collection Container(s) |
EDTA (purple top) |
|---|---|
| Collection |
Infants (< 2-years): 2 to 3 mL; Children (>2-years): 3 to 5 mL; Older children and adults: Minimum 5mL. The blood tube should be inverted several times immediately after blood collection to prevent coagulation. |
| Sample Condition |
Store at ambient temperature. Do not refrigerate or freeze. |
| Shipping |
Ship overnight at ambient temperature ensuring receipt within 5-days of collection. |
| SPECIAL SAMPLE INSTRUCTIONS |
Clotted or hemolyzed samples are not accepted. |
Saliva
| Collection Container(s) |
Oragene™ Saliva Collection Kit or ORAcollect-Dx kit |
|---|---|
| Collection |
Collect saliva on an Oragene™ Saliva Collection Kit ORAcollect-Dx kit according to the manufacturer's instructions. |
| Sample Condition |
Store at ambient temperature. Do not refrigerate or freeze. |
| Shipping |
Ship overnight at ambient temperature. |
| SPECIAL SAMPLE INSTRUCTIONS |
Please contact Revvity Omics to request the saliva collection kit for patients who cannot provide a blood sample as whole blood is the preferred sample. Testing using Saliva swabs is currently not available for customers in India. Contact the Revvity Omics laboratory for more information. |
Dried Blood Spots
| Collection Container(s) |
Dried blood spot card |
|---|---|
| Collection |
Follow kit instructions. Briefly, allow blood to saturate the card until indicated areas are filled and blood has soaked through the card. Air dry the card at ambient temperature for at least 3 hours.
|
| Sample Condition |
Follow the instructions provided with the collection set. Store the dried blood at ambient temperature for up to two days. If the specimen cannot be sent as soon as it is dry, the filter paper should be placed in a sealable plastic bag and stored in a refrigerator (≤ 8°C) or preferably in a freezer. |
| Shipping |
Follow kit instructions. Double bag and ship overnight at ambient temperature. |
Resources
How To Order
Choose Your Test
Select the correct test for your patient, and download and fill out the Clinical Genomics test requisition form.
Collect Sample
Obtain a sample for testing from the patient using one of the provided Revvity Omics test packs.
Send Samples
Send samples and all required forms back to Revvity for processing using pre-paid shipping label.
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