BRCA2 Mutation Detection (Genetic Test)
This test checks for specific genetic changes (mutations) in the BRCA2 gene, which may increase your risk of certain cancers, including breast and ovarian cancer.
["Genetic testing helps identify inherited cancer risks for personalized prevention and monitoring."]
Key facts at a glance
- LOINC
- 100761-6
- Short code
- PALB2 Mut Anl Bld/T
- Synonyms
- PALB2 Mut Anl Bld/T
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- molgen
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have a strong family history of breast, ovarian, prostate, or pancreatic cancer, or if you have been diagnosed with certain types of cancer at a younger age. It may also be suggested if you have a personal or family history of conditions like male breast cancer, Ashkenazi Jewish ancestry, or other genetic syndromes linked to BRCA2 mutations.
What to Expect Before the Test
You will need a blood sample drawn from a vein in your arm. The process is quick and typically done in a clinic or lab setting. You may be asked to fast for a few hours before the test, but this depends on the healthcare provider’s instructions.
What the Results Mean
Results can be categorized as negative (no BRCA2 mutation found), positive (a known mutation detected), or variant of uncertain significance (VUS), which requires further evaluation. A positive result means you carry a mutation linked to higher cancer risk and may need closer monitoring or preventive measures.
Next Steps After Testing
If a BRCA2 mutation is found, your healthcare team will discuss risk-reducing options such as regular cancer screenings, medications, or preventive surgeries like mastectomy or oophorectomy. Support groups and genetic counseling are also available to help you understand your results and next steps.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
BRCA2 Mutation Screening
Frequently asked questions
What does this test measure?
How accurate is this test?
Can I get this test if I don’t have a family history of cancer?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy