Fetal DNA Test for Trisomy 21 (Everli)
in Gijón
- Collection of the maternal blood sample: ✓
- Blood test: ✓
- Results report: ✓
- Results delivery: 3–6 working days
Laboratorio Eurofins - Sanatorio Covadonga
C. Gral. Suárez Valdés, 40, Gijon-Este, 33204 Gijón, Asturias, España, 33204 Gijón
Fixed price
199 €
All included
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Information of Fetal DNA Test for Trisomy 21 (Everli) in Gijón
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Everything you need to know about the T21 Prenatal Test
The T21 Prenatal Test can detect, during pregnancy, whether the baby presents Trisomy 21, also known as Down syndrome. This test is carried out at the Laboratorio Eurofins - Sanatorio Covadonga by expert geneticists using the QF–PCR technique (Polymerase Chain Reaction).
You will receive the complete results within 3–6 working days. In addition, it is not necessary to fast before taking the test.
Trisomy 21 (T21), or Down syndrome, is the most common genetic alteration, as 1 in every 700 newborn babies presents this condition at birth.
The test to detect T21 can be performed from week 10 of pregnancy and allows you to learn about your baby’s health well before delivery.
We invite you to continue reading to learn all the details about this prenatal analysis, the procedure, and its usefulness:
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Who is the Down Syndrome test recommended for?
The Prenatal Test for Down Syndrome (T21) is recommended for pregnant women with at least 10 weeks of gestation who have a single pregnancy.
The fetal DNA study is carried out using a blood sample provided by the mother.
To take the T21 Test, you can click on the image below and follow the simple steps indicated. If you have any questions, you can contact our Patient Service Department by calling +34 91 141 33 56 or by filling in the contact form so that we can call you back.
Fetal DNA Prenatal Test
Make your purchase quickly and safely with Operarme at your nearest laboratory.
Purchase nowPurchase the Down Syndrome (Trisomy 21) Test in Gijón
Once you purchase the T21 Non-Invasive Prenatal Test through Operarme, you will receive an email with your voucher.
After downloading your prenatal test voucher, you can redeem it directly at the sample collection centre in Gijón or call the centre for more information.
With your voucher, you will find an attached consent form that you must print and complete to present at the Megalab centre in Gijón when you attend your appointment.
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How is the Down Syndrome Test performed?
Before taking the test, you must first have an ultrasound scan (not included) to confirm that you are more than 10 weeks pregnant, ensuring that no anomalies affect the test results and cause inaccuracies.
Once the exact stage of pregnancy has been confirmed, the team of geneticists at Megalab in Gijón will take a blood sample from you.
- After the blood sample has been collected, it will be sent to the laboratory for analysis, and you will then wait to receive your results and the telephone consultation with the Megalab geneticist.
- As soon as the DNA analysis results are ready, you will have a telephone consultation with the geneticist to discuss and understand the conclusions.

The team of geneticists at Megalab in Gijón will explain how to access your results:
- You will be given an access code to log in to your private area.
- From there, you can check the status of your results report.
- If the results are not yet available, they will appear as “pending.”
- Finally, you will be provided with the telephone number of the Laboratorio Eurofins - Sanatorio Covadonga, where you had the test performed, in case you have any questions while waiting for your results.
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T21 Trisomy test results
The results of the Trisomy 21 Test will be available within 3–6 working days. In addition, it is not necessary to fast before taking the test.
After the blood sample is taken and analysed, the results shown in the report may indicate the following:
- High risk. The probability that the baby has a chromosomal alteration during pregnancy is high. In these cases, additional tests during pregnancy or a postnatal evaluation are recommended.
- Low risk. The probability of chromosomal alterations is low. Therefore, routine prenatal care would continue as normal.
The result of the T21 prenatal test is expressed as a risk percentage, ranging from 0.01% to 99%.
- No result. Occasionally, there may not be enough foetal cells in the maternal blood sample (in fewer than 5% of cases). The test can always be repeated, and in about half of these cases, a result is obtained on the second attempt at no additional cost.
For T21 tests, the rate of inconclusive results is below 1%.
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Price of the Fetal DNA Test for Trisomy 21 in Gijón
The Down Syndrome Test in Gijón costs 199 € , which is a fixed, all-inclusive price. The T21 prenatal test includes:
- Collection of the maternal blood sample.
- Analysis of the sample for the detection of T21.
- Delivery of the non-invasive prenatal test results.
If you are considering taking the Trisomy 21 test, remember that you can do so safely and easily through Operarme at the Laboratorio Eurofins - Sanatorio Covadonga.
You can request your Trisomy 21 detection test voucher quickly and easily by filling in our contact form, calling +34 91 141 33 56, or clicking on the button below:
Fetal DNA Prenatal Test
Make your purchase quickly and safely with Operarme at your nearest laboratory.
Fixed price
199 €
All included
Step by step
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You request and pay for the medical test voucher.
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You receive the information by email.
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You go to the centre with your voucher.
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You receive the test result.
What do our patients think?
Frequent Questions
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Which prenatal tests can you find at Operarme?
Everli Prenatal Tests by Megalab Laboratories. Discover the test that best suits you and your needs:
- Everli Basic Prenatal Test
This test assesses the risk of Trisomy 21, 18 and 13 — that is, Down syndrome, Edwards syndrome and Patau syndrome — and can also determine the baby’s sex. - Everli Advanced Prenatal Test
This test assesses the risk of Trisomies 1 to 22, abnormalities in the X and Y chromosomes (aneuploidies), and can also determine the baby’s sex. - Everli Complete Prenatal Test
This test assesses the risk of Trisomies 1 to 22, abnormalities in the X and Y chromosomes (aneuploidies), detects the probability of the 22q11.2 deletion, and can also determine the baby’s sex. - Everli Plus Prenatal Test
This test assesses the risk of Trisomies 1 to 22, abnormalities in the X and Y chromosomes (aneuploidies), detects the probability of the 22q11.2 deletion and the main syndromes, and can also determine the baby’s sex.
Other Prenatal Tests you may be interested in — Harmony Prenatal Tests:
- Harmony Basic Test
This test assesses the risk of Trisomy 21, 18 and 13 — that is, Down syndrome, Edwards syndrome and Patau syndrome — and can also determine the baby’s sex. - Harmony Medium Test
This test detects Trisomies 21, 18 and 13, as well as the baby’s sex and any alteration in the number of X and Y chromosomes. - Harmony Extended Prenatal Test
This test assesses the risk of Trisomy 21, 18 and 13, abnormalities in the X and Y chromosomes (aneuploidies), and detects the probability of the 22q11.2 deletion, as well as determining the baby’s sex.
- Everli Basic Prenatal Test
Fetal DNA Test for Trisomy 21 (Everli)
- Collection of the maternal blood sample: ✓
- Blood test: ✓
- Results report: ✓
- Results delivery: 3–6 working days
Laboratorio Eurofins - Sanatorio Covadonga
C. Gral. Suárez Valdés, 40, Gijon-Este, 33204 Gijón, Asturias, España, 33204 Gijón
Fixed price
199 €
All included