Paternity Testing With Blood

blood dna testing to determine paternity

How does paternity testing process with blood work?

A home paternity test using blood samples on garments can be performed using a variety of viable DNA samples. Here are a few examples of items that can be used to perform a DNA paternity test; blood stains from a band-aid, tampon, bloody tissue or a napkin, just to name a few. 

This DNA testing option cannot be used for any legal purpose. This testing option is performed when an alleged father or child or children is unavailable to be tested.

Please note, if the method of collecting your blood sample is not performed by blood card or blood draw. All other methods are considered forensic DNA tests and will cost more to perform a DNA test. It is recommended that you contact our office at 866-205-8356 today if you, a family or a person you may know has any questions regarding our forensic DNA testing process.

at home dna test kit

Getting Started

The process is simple to get started. 

1. The First step, contact Paternity Express by phone at 866-205-8356 or you can purchase a kit online here.

2. After you purchase your kit. Please allow 24 hours or the next business day for your kit to ship to your home. 

3. Once the kit has shipped you will be sent an email with the tracking information going to your home.

4. After you receive your kit. Follow the enclosed instructions carefully on how to collect your own samples. Complete the chain of custody form. Place your samples and chain of custody inside of your prepaid return envelope.

5. Once your samples arrive at the lab. Please allow 1 to 3 business days for your results to be completed.

6. When your results are complete. One of our DNA relationship testing consultants will contact you and provide you with a result update. A copy will be sent to you by email and another copy will be sent by physical mail.

Please note: If you are a New York State resident you will not be able to purchase any Home DNA Testing kits due to the New York State Department of Health guidelines. Only legal DNA tests can be performed in New York State.


Frequently Asked Questions

How much does a paternity blood test cost?

Performing a paternity test using a blood sample costs start at $299.99 and up. 

It should be noted that the prices vary based on the type of sample being used for comparative genetic testing.

Does the mother of the child have to participate in a paternity test?

No, it’s not mandatory, but we do recommend a mother be involved in the testing process to help increase the accuracy of your paternity test results.

Can an alternative DNA test be performed if the father is not available?

Yes. The most common family reconstruction DNA testing options available are a DNA test with grandparents, sibling DNA tests or an avuncular DNA test.

Can I use my results as evidence in a child support case?

No. Home paternity tests are for informational or peace of mind purposes only. 

For families in need of legal paternity testing results please contact us at 866-205-8356 to inquire about our legal testing option.

Is a blood DNA test more accurate than a swab DNA test? 

 The testing accuracy for blood DNA testing vs cheek swab DNA testing is about the same. They have a 99% success rate of conclusiveness. 

Does the alleged father and child both have to submit blood samples for a paternity tests to work?

No. Using blood samples for all parties as a method of comparative analysis with parents (mother and/or father) with a child is not mandatory to produce accurate results. 

Collecting epithelial cells from the inside of the mouth with a cheek swab from one parent or child, while the other sample from a parent or child  can be a blood sample. The example provided is the most common way this type of paternity test is performed.

Can blood types determine paternity?

Unfortunately, using blood types to determine paternity is not an accurate or definitive way to prove an alleged father is the biological father of a child. What using blood types can do is prove an alleged father is not biologically related to a child. For example, if the assumed father has blood type – A and the child B positive it would not be possible for blood type A to produce a blood type B. Therefore, the alleged biological father could not be biologically related to the child.

How long does the DNA paternity test process take when using blood?

The average turnaround time for the blood DNA paternity testing process is 1 to 3 business days which is the same as using buccal swab samples. If you are looking to order a home DNA paternity test kit. Please do not hesitate to click the image below to order online or contact our office today at 866-205-8356.


DNA Testing Forensic Paternity Testing