If you have never taken a DNA test before, you may have questions about what happens during the process. Is the sample collection painful? How long does it take? What happens to your sample after it reaches the laboratory? And, most importantly, how are your results kept private?
The good news is that DNA testing is generally a simple, quick, and non-invasive process. From sample collection to laboratory analysis and the delivery of results, each stage is designed to maintain accuracy, confidentiality, and the integrity of your sample.
At the Lagos State DNA & Forensic Centre (LSDFC), clients can access professional DNA testing services supported by established laboratory procedures and careful sample handling.
This step-by-step guide explains what you can expect when undergoing a DNA test.
Step 1: Determine the DNA Test You Need
Before sample collection begins, the first step is determining the type of DNA test that is appropriate for your situation.
DNA testing may be requested for a variety of purposes, including establishing biological relationships, resolving family-related questions, or meeting certain legal or official requirements.
The purpose of the test is important because it may determine the collection and documentation procedures that need to be followed.
For example, a DNA test intended for personal knowledge may have different procedural requirements from a test whose results will be used for legal or official purposes.
If you are uncertain about the appropriate test, the LSDFC team can help explain the available options and the process involved.
Step 2: Schedule Your DNA Sample Collection
Once the appropriate test has been identified, the next step is arranging sample collection.
Scheduling an appointment helps ensure that the necessary personnel and materials are available and gives you an opportunity to receive any instructions that may apply before your visit.
For most standard cheek-swab DNA collections, extensive preparation is not required. However, you should follow any instructions provided when your appointment is scheduled.
For tests requiring identity verification or formal documentation, you may also be asked to bring appropriate identification or other supporting documents.
Step 3: DNA Sample Collection
For many DNA tests, collecting the sample is surprisingly easy.
A buccal swab, commonly known as a cheek swab, is typically used to collect cells from the inside of the mouth. A sterile swab is gently rubbed against the inside of the cheek to obtain cells containing DNA.
The collection process is:
- Quick
- Painless
- Non-invasive
- Suitable for adults and children
- Usually completed within a few minutes
No needles are required for a standard cheek-swab collection.
Where samples are being collected from multiple individuals for a relationship test, each person’s sample is collected and identified according to the applicable procedure.
Step 4: Sample Identification and Handling
Collecting the DNA is only one part of the process. Proper handling of the sample is equally important.
Following collection, samples must be appropriately identified, packaged, documented, and prepared for laboratory analysis.
For DNA tests conducted for legal or official purposes, additional procedures may be required to document the identities of the individuals being tested and maintain an appropriate chain of custody.
Chain-of-custody procedures help document how a sample was collected, identified, transferred, handled, and analyzed. This helps protect the integrity of the testing process.
This is one reason it is important to tell the laboratory how you intend to use your DNA test results before testing begins.
Step 5: Laboratory DNA Analysis
After collection, the samples proceed to the laboratory for analysis.
DNA is extracted from the collected cells and examined using specialized laboratory techniques. Depending on the type of test being performed, analysts examine specific genetic markers and compare the DNA profiles of the individuals involved.
In a relationship test, for example, the laboratory evaluates the relevant genetic markers to determine whether the DNA profiles support the claimed biological relationship.
Quality procedures are followed throughout the analytical process to help ensure that results are reliable and accurately reported.
Step 6: Review and Interpretation of Results
Once laboratory analysis has been completed, the findings are reviewed and interpreted.
DNA test reports are based on scientific analysis rather than appearance, assumptions, family resemblance, blood type, or other informal indicators.
The exact information included in your report will depend on the type of DNA test performed.
If there is terminology in your report that you do not understand, ask for clarification rather than trying to interpret technical language on your own.
Step 7: Secure Delivery of Your DNA Test Results
After the analysis and review process is complete, your DNA test results are made available through the applicable delivery method.
Turnaround times can vary depending on the type of DNA test, the samples involved, and any special testing or documentation requirements.
When arranging your test, ask about the expected turnaround time for your particular service if you need the results by a specific date.
Because DNA results contain sensitive personal information, they are communicated and handled securely.
How Long Does a DNA Test Take?
The actual cheek-swab collection usually takes only a few minutes.
Laboratory processing takes longer because samples must go through several stages, which may include sample preparation, DNA extraction, analysis, quality review, interpretation, and reporting.
The total turnaround time therefore depends on the test being performed and the circumstances surrounding the case. Our standard turnaround time is 2-4 weeks for routine cases.
Does a DNA Test Hurt?
For a standard cheek-swab DNA test, no.
The swab is simply rubbed along the inside of the cheek to collect cells. There are no needles or injections involved in a routine buccal-swab collection.
This makes cheek-swab DNA collection a convenient option for both adults and children.
Privacy and Confidentiality During DNA Testing
DNA information is highly personal, which makes confidentiality an essential part of the testing process.
At LSDFC, client information, samples, documentation, and test results are handled according to applicable laboratory procedures designed to protect sensitive information and maintain the integrity of the testing process.
Clients should also take appropriate care when storing or sharing copies of their DNA test results.
Personal DNA Testing vs. DNA Testing for Legal Purposes
One of the most important things to establish before taking a DNA test is why you need the result.
A DNA test performed primarily for personal knowledge may not require the same identity-verification and chain-of-custody procedures as testing intended for legal or official use.
If you believe your results may eventually be required for a court proceeding, official documentation, or another formal purpose, mention this before sample collection.
Following the correct procedure from the beginning may help prevent the need to repeat the test later.
What Should You Bring to Your DNA Test?
Requirements vary depending on the test being performed. When scheduling your appointment, confirm whether you need to bring identification, photographs, documentation relating to the individuals being tested, or any other materials.
Following the instructions in the “Things to Know” document provided before your appointment can help make the collection process as smooth as possible.
Why Choose LSDFC for DNA Testing?
Choosing a DNA testing provider is about more than simply collecting a sample. The reliability of the process depends on appropriate sample collection, handling, analysis, documentation, and reporting.
The Lagos State DNA & Forensic Centre provides access to professional DNA and forensic laboratory services with an emphasis on scientific integrity, confidentiality, and dependable laboratory procedures.
Whether you are seeking answers for personal, family, legal, or other authorized purposes, understanding the process can make DNA testing considerably less intimidating.
Ready to Schedule a DNA Test?
Getting answers can begin with a simple cheek swab.
Contact the Lagos State DNA & Forensic Centre (LSDFC) to discuss your testing needs, determine the appropriate testing procedure, and schedule your DNA sample collection.
Email: info@lsdfc.org
Phone: +234 814 741 1921
Frequently Asked Questions About DNA Testing
Is DNA testing painful?
No. Most routine DNA tests use a painless cheek swab to collect cells from inside the mouth.
How long does DNA sample collection take?
Cheek-swab collection typically takes only a few minutes, although the overall appointment may take longer when identification or documentation procedures are required.
Do I need to provide blood for a DNA test?
Not necessarily. A cheek swab is commonly used for many types of DNA testing because it provides cells containing DNA without requiring a blood draw.
How quickly will I receive my DNA test results?
Turnaround time depends on the type of test and the circumstances of the case. Standard turnaround time is 2-4 weeks for routine cases. Ask about the expected timeframe when scheduling your test.
Can DNA test results be used for legal purposes?
DNA testing for legal or official purposes may require specific identity-verification, documentation, and chain-of-custody procedures. Inform the laboratory about the intended use of your results before testing.
Are DNA test results confidential?
DNA information is sensitive personal information. Appropriate confidentiality and sample-handling procedures are taken throughout collection, analysis, reporting, and delivery.