Newborn Metabolic Screening

Most babies look healthy and perfect when they are born—just ask their parents.

But because some potential problems aren't readily seen, all newborns are tested for certain conditions, including metabolic disorders.

A metabolic disorder is one that gets in the way of how the body breaks down food, absorbs nutrients, or handles enzymes. Left untreated, some of these disorders could affect a baby's development. They can cause organ damage or even death.

By screening for these disorders at birth, healthcare providers are then able to treat them as soon as possible. In many cases, simply finding out that your baby has the condition and making diet or lifestyle changes will allow your child to cope with the metabolic disorder and live a healthy life.

One of these disorders is known as phenylketonuria or PKU. The blood test for PKU finds out if your baby's body can process a substance called phenylalanine. Many foods, such as milk, meat, and nuts, contain phenylalanine. If your baby's body can't process it, it can build up in their blood and tissue. Undiagnosed, PKU can cause permanent brain damage.

If PKU is caught during the screening process, your baby can be placed on a special diet. This will help your baby avoid complications. This is just one example of how important metabolic screening can be.

Hypothyroidism is another condition that can be caught by a newborn metabolic screening. With this disorder, your baby's body doesn't make enough thyroid hormone. By catching it early, the healthcare provider can put your baby on a thyroid medicine to help prevent any complications.

Not every disorder is as easily treatable as PKU or hypothyroidism. In all cases, though, you need to know about any conditions your baby has so that you can take all necessary health steps.