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Newborn Screening

Newborn Screening tests infants for inherited disorders that can threaten the health or well-being of your new child.


What are Genetic Disorders?

Genetic disorders include birth defects and inborn chemical problems your baby may be born with. Genetic disorders cannot be cured. They can, however, be treated to reduce their effect on your child throughout his or her life.

Newborn Screening

Newborn screening is a blood test that can identify the most common genetic disorders. Babies can be tested shortly after birth to discover and treat any problems as soon as possible.

Mississippi has one of the most comprehensive newborn screening programs in the nation. State law now requires that all babies born in Mississippi be tested for forty genetic disorders.

Early screening is the only way to detect these disorders and prevent permanent damage to your child. Early detection means that treatment can be started that will help your child lead a normal life.

Genetic Counseling

Genetic counseling is offered to parents of children with genetic disorders. A doctor will explain what genetic disorders are, how genetic testing works, and how to understand the results to help plan your child's future.

What we test for

We test Mississippi newborns for 40 possible genetic disorders, including:

  • Hypothyroidism (TSH) – a hormone deficiency that requires early treatment to avoid serious health effects. It occurs in about one of 4,500 births.
  • Phenylketonuria (PKU) – an enzyme deficiency that can prevent proper brain development and requires a special diet. PKU occurs in about 1 of 15,000 births.
  • Galactosemia (GAL) – an enzyme deficiency that prevents milk from being processed by the body. Unless a milk-free diet is followed as soon as the child is born, it can lead to organ damage and other serious medical problems. GAL occurs in about 1 of every 50,000 births.
  • Blood disorders – Sickle-cell anemia is one of a group of life-threatening blood disorders that must be treated early. If the disease is detected early enough, treatment can help your child lead a nearly normal life.
  • See our complete list of tests.

Questions and Answers

When and how are newborn screening tests performed?

The test is usually performed while your baby is still in the hospital and at least 24 hours after delivery. A few drops of blood are taken by pricking your baby's heel. From this small sample of blood, the laboratory can test your baby for all forty genetic disorders.

Are genetic disorders serious?

Some genetic disorders are serious; some are even life-threatening. Others slow physical development or cause mental retardation. Unfortunately, most infants with these disorders at first show no obvious signs of disease. The good news is that proper screening at birth can discover these problems early. With early diagnosis and treatment, some genetic disorders can often be managed effectively.

What will my baby be tested for?

Click to see our complete listing of all forty disorders that Mississippi tests for.

Will I be told of the results?

If a problem is found, you and your baby's doctor will be notified. With these kinds of disorders, contacting you is critically important. Occasionally a retest or an additional test might be requested by the laboratory. A common reason for a retest is that the first sample contained too little blood for adequate testing.

Can these disorders be cured?

No cure is known for these genetic disorders. The serious effects of many of the disorders can be lessened if a special diet, medical treatment, or other intervention is started early.

If my baby has one of these disorders, does it mean my future children will also be affected?

Your doctor can discuss this with you or refer you to a specialist. These specialists have information about the specific disorder and how it is inherited. They can help you understand any risk for your future children.

Get in touch — find out more

More Information

Contact MSDH

To learn more about Newborn Screening, or take advantage of genetic counseling, contact your local health office, or:

  • MSDH Genetic Services: 601-576-7619
  • UMC Department of Preventive Medicine: 601-984-1900
 
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  Genetic Counseling: Questions & Answers
  Genetic Disorders We Test For
A complete list of conditions
  Penicillin in Sickle Cell Disease: Quick Facts For Parents
  Mississippi Genetic Services Plan    view/download    [1MB] pdf
A comprehensive report on genetic services in Mississippi (2003)
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