Don't wait 9 months to know the truth
Determine paternity from week 10 of pregnancy. 100% safe. No risk to the baby.
Test details
The prenatal test analyzes fetal DNA circulating naturally in the mother's blood. Only a standard maternal blood sample and a buccal swab from the alleged father are needed. No contact with the baby at any time.
How does the test work?
A non-invasive study that reconstructs the baby's genetic profile from a blood sample taken from the mother.
Sample collection
From week 10 of pregnancy, a venous blood sample is drawn from the mother and a buccal swab is taken from each alleged father. No procedure is performed on the baby.
Isolating fetal DNA
Fragments of the baby's DNA circulate in the mother's blood. Using high-sensitivity sequencing and separation algorithms, the lab distinguishes them from the maternal fragments and reconstructs the fetal genetic profile.
Marker comparison
That profile is compared against each alleged father. One incompatible marker is enough to exclude him. When every marker is compatible, he cannot be ruled out and the report states paternity as compatible.
The entire analysis is processed without any contact with the baby, and every alleged father can be included in the same study at no extra cost.
Frequently asked questions
Is the prenatal test safe for the baby?
+Can it be done with twins?
+Can multiple alleged fathers be tested?
+Is fetal sex included?
+How does the test work?
+Can a paternity test be done during pregnancy?
+From which week of pregnancy can it be done?
+How much does a prenatal DNA test cost in Costa Rica?
+How long do results take?
+Is the test confidential?
+Other tests in this section
Write to us and we'll walk you through which one fits your case and what it costs.
Paternity test
Buccal swab from the alleged father and the child. Results in under a week, available as informational or legally valid.
See details →Family relationship
For when the alleged father is not available: grandparents, siblings, or paternal uncles. Accuracy rises with each participant.
See details →Genetic carrier panel
Checks whether a healthy person carries recessive variants — cystic fibrosis, spinal muscular atrophy, congenital deafness, among others — that only cause disease when both parents pass on the same one. It is done before trying to conceive or during the first trimester. It is not a paternity test; it answers a different question.
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