COL1A1 Gene Mutation Test (Blood)
This test checks for specific genetic changes in the COL1A1 gene, which may be linked to conditions affecting collagen production in your body.
["Genetic screening for COL1A1 mutations can help identify potential risks for connective tissue disorders."]
Key facts at a glance
- LOINC
- 21658-0
- Short code
- COL2A1 gene Mut Tested Bld/T
- Synonyms
- COL2A1 gene Mut Tested 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 family history of conditions like osteogenesis imperfecta (brittle bone disease), Ehlers-Danlos syndrome, or other collagen-related disorders. It may also be used for prenatal testing or carrier screening in certain cases.
What to Expect Before the Test
No special preparation is needed. A simple blood draw will be performed by a healthcare professional. You may experience slight discomfort, but it typically takes a few minutes to complete.
What the Test Measures
The test analyzes DNA from your blood sample to detect mutations in the COL1A1 gene, which codes for a protein essential for collagen formation. Mutations in this gene can lead to structural abnormalities in connective tissues.
How the Results Are Used
Results can help determine if you carry a mutation that may increase your risk for inherited conditions. This information can guide treatment plans, genetic counseling, or decisions about family planning.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
COL1A1 Mutation Screening
Frequently asked questions
Genetic testing can provide critical insights into your health risks. If a COL1A1 mutation is found, it may indicate a higher likelihood of developing connective tissue disorders, which could affect bones, skin, or joints. Consult your healthcare provider to discuss next steps and potential management strategies.
A positive result means you have a genetic mutation in the COL1A1 gene. This may increase your risk for conditions like osteogenesis imperfecta or other connective tissue disorders. Your provider will help explain how this might impact your health and any recommended next steps.
This test checks for specific mutations commonly associated with COL1A1-related disorders. However, there may be other rare mutations not covered by this test. Comprehensive genetic testing may be needed for a full assessment.
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