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Newborn screening: the blood test for your baby

Last reviewed: August 25, 2026VerifiedSalud

In short

Act 84 of July 2, 1987, as amended, creates within the Department of Health the Program for the Detection, Diagnosis and Treatment of Hereditary Diseases and provides that blood samples shall be taken from every newborn in Puerto Rico to promptly detect the presence of any of the conditions included in the Program’s Regulation. The law requires that Regulation to include compulsorily, but not be limited to, ten conditions: congenital hypothyroidism, hemoglobinopathies, congenital adrenal hyperplasia, galactosemia, aminoacidopathies including phenylketonuria, organic acidemias, fatty acid oxidation disorders, cystic fibrosis, biotinidase deficiency and severe combined immunodeficiency (SCID). Anyone who objects to these tests being performed on a newborn in their custody must submit a sworn declaration to the Department of Health stating their reasons for that objection within the first forty-eight (48) hours of the newborn’s life. The duty to make arrangements for taking the sample falls on every person in charge of a public or private health facility or any other entity where a birth takes place, or on the physician caring for a newborn. Each family shall be responsible for defraying the cost of the screening tests, through their medical insurance or their own funds, whether by direct payment or included within the payment for maternity services at the hospital where the infant is born. The norms and regulations must guarantee the confidentiality of the results and the privacy of the persons tested, and anyone violating the law or its regulations shall be guilty of a misdemeanor.

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What is it?

It is the blood test taken from a newborn baby to detect a group of hereditary diseases early. In Puerto Rico it is ordered by Act 84-1987, which also names ten conditions the program’s regulation must include compulsorily. Two things surprise almost every family: that you can object, but only by sworn declaration and within the first 48 hours of life; and that the cost is paid by the family, through insurance or out of pocket.

Who can do it?

The law reaches every newborn in Puerto Rico, with no exception for place of birth: the duty falls on the person in charge of the public or private health facility, on any other entity where a birth takes place, or on the physician caring for the newborn. The only way out the law contemplates is the objection, and it comes with its own form and its own deadline.

Requirements

Documents you need

Cost

The cost depends on your situation. Check which cost applies with the official agency.

Step by step

  1. Step 1: The test is taken from every newborn

    The law does not frame it as an offer. It says that, as of the Program Regulation’s effective date, “blood samples shall be taken from every newborn in Puerto Rico to promptly detect the presence of any of the conditions included in that Regulation.” That is the starting point for everything else.

  2. Step 2: The ten conditions the regulation must include

    It is worth having the list because it is the legal floor, not the ceiling. The law orders the Regulation to include “compulsorily, but shall not be limited to” these ten: congenital hypothyroidism; hemoglobinopathies; congenital adrenal hyperplasia; galactosemia; aminoacidopathies, which include phenylketonuria; organic acidemias; fatty acid oxidation disorders; cystic fibrosis; biotinidase deficiency; and severe combined immunodeficiency, SCID. The regulation may cover more, which is why we do not publish a closed list here of what is screened today.

  3. Step 3: Objecting: sworn declaration and 48 hours

    This is the part almost nobody learns in time, and the deadline is what makes it hard. The law says: “Those persons who object to a newborn in their custody undergoing the tests for the detection and diagnosis of hereditary diseases imposed by Law, must submit a sworn declaration to the Department of Health stating their reasons for that objection within the first forty-eight (48) hours of the newborn’s life.” It is not a signature on a hospital form: it is a sworn declaration, addressed to the Department of Health, with reasons, and within two days of life.

  4. Step 4: Who has the duty to make the arrangements

    The law spreads the duty broadly, which is why it also covers births outside a hospital: “Every person in charge of a public or private health facility or any other entity where a birth takes place, or the physician caring for a newborn, must make the pertinent arrangements so that within the term established in the Program’s Regulation, a blood sample is taken from the newborn.” The concrete term lives in the Regulation and we do not publish it.

  5. Step 5: Who pays: the family

    We say it in full because it surprises. “Each family shall be responsible for defraying the cost of the screening tests established by the Program’s Regulation, through their medical insurance or their own funds, whether by direct payment or with the cost included within the payment for the maternity services of the hospital where the infant is born.” The law sets no amount anywhere, so there is no price here to publish; what there is, is an answer to why it shows up on the maternity bill.

  6. Step 6: The list can grow, and why

    This explains why today’s screening may be broader than the law’s ten conditions. The Hereditary Diseases Council has the function of “determining the hereditary conditions for which laboratory or medical tests shall be required (…) based on the ‘U.S. Recommended Uniform Screening Panel’ Guidelines or any later guidelines or editions that by federal mandate replace them,” and must also examine from time to time the existing medical information to determine which conditions should be included.

  7. Step 7: Confidentiality of the results

    The law demands it of the regulations in clear terms: the norms and regulations adopted “must contain provisions to guarantee the confidentiality of the results of the laboratory or medical tests performed and the privacy of the citizens submitted to them.” It also orders establishing oversight parameters so hospital institutions with births perform the tests following the Department’s protocols, and guidelines for the care and follow-up of positive cases and for offering genetic counseling.

  8. Step 8: What happens if it is not complied with

    The law closes with a penalty and it is worth quoting because it is not symbolic: “Any person who violates the provisions of this act or of the regulations adopted under it shall be guilty of a misdemeanor and upon conviction shall be punished with imprisonment for a term not exceeding six (6) months or a fine not exceeding five hundred (500) dollars or both penalties at the court’s discretion.”

Where to do it

The objection is submitted to the Department of Health, because the law so provides. Taking the sample is coordinated by the health facility where the birth occurs — or the entity where it occurs, or the physician in charge of the newborn — not by the family. The Program lives inside the Department of Health and the Hereditary Diseases Council advises it. If your matter is registering the birth or correcting the certificate, that has its own guide here.

How long it takes

The objection has a fixed deadline: the first forty-eight (48) hours of the newborn’s life. The law sets no deadline for taking the sample: it defers that to the Program’s Regulation.

Verified against the official source · August 25, 2026

What to do if something goes wrong

What we do not publish, and why. We do not publish the test’s price: the law places the cost on the family but sets no amount anywhere, which is why cost appears as variable rather than a number. We do not publish an objection form: the law asks for a sworn declaration and names no form at all. We do not publish the deadline for taking the sample: the law defers it to the Program’s Regulation, which we did not read. We do not publish the full list of conditions screened today: the law sets ten compulsorily “but shall not be limited to” them, and the Council may add more following the U.S. Recommended Uniform Screening Panel. Nor do we publish where inside the Department the sworn declaration is filed, because the law does not say.

Common mistakes

  • Believing it is enough to tell the hospital no: the law requires a sworn declaration to the Department of Health, with reasons.
  • Letting the deadline pass: the objection goes within the first forty-eight (48) hours of the newborn’s life.
  • Thinking the government pays for the test: the law places the cost on each family, through medical insurance or their own funds.
  • Assuming only the law’s ten conditions are screened: they are the compulsory minimum, and the Council may add more.
  • Believing a birth outside a hospital is excluded: the duty reaches any entity where a birth takes place and the physician caring for the newborn.
  • Assuming the results are public: the law requires the regulations to guarantee the confidentiality of the results and the person’s privacy.

Frequently asked questions

Can I refuse to have blood drawn from my baby?

The law contemplates the objection, with a form and a deadline: whoever objects “must submit a sworn declaration to the Department of Health stating their reasons for that objection within the first forty-eight (48) hours of the newborn’s life.”

What diseases does the test look for?

The law requires compulsorily including ten: congenital hypothyroidism, hemoglobinopathies, congenital adrenal hyperplasia, galactosemia, aminoacidopathies including phenylketonuria, organic acidemias, fatty acid oxidation disorders, cystic fibrosis, biotinidase deficiency and severe combined immunodeficiency (SCID). And it adds that the regulation “shall not be limited to” them.

Why is there a charge for this test on my bill?

Because the law provides so. “Each family shall be responsible for defraying the cost of the screening tests (…) through their medical insurance or their own funds, whether by direct payment or with the cost included within the payment for the maternity services of the hospital where the infant is born.”

What if the baby was born at home?

The law does not leave it out. The duty to make arrangements falls on “every person in charge of a public or private health facility or any other entity where a birth takes place, or the physician caring for a newborn.”

Official sources

These are the government pages this guide is based on.

Last verified

August 25, 2026

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