Newborn Screening Tests

Medically reviewed by Drugs.com. Last updated on Jun 2, 2025.

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Newborn screening tests check your baby for conditions that may be treated, prevented, or managed. Screening tests are usually done when a baby is 1 to 2 days old. Early diagnosis and treatment of certain conditions can prevent them from becoming life-threatening. A condition may instead be managed to help prevent symptoms or make them less severe.

DISCHARGE INSTRUCTIONS:

Call your local emergency number (911 in the US) if:

• Your baby stops breathing for more than 20 seconds.
• You cannot wake your baby.

Seek care immediately if:

• Your baby is breathing more slowly or more quickly than usual.
• Your baby has a fever above 100.4°F (37.8°C).
• Your baby's heel shows signs of infection, such as swelling, redness, or pus.

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Call your baby's doctor if:

• You have questions or concerns about your baby's condition or care.

Watch for signs of a health condition

while you wait for test results. You may get specific directions if your baby is at high risk for a condition. The following are general guidelines:

• Watch for breathing problems. A newborn usually takes 30 to 60 breaths each minute. Fast, slow, or difficult breathing may be a sign of a serious health problem, such as a heart condition. Cyanosis (blue, purple, or gray skin) may mean your baby's body is not getting enough oxygen. Cyanosis commonly develops on the face, hands, and feet.
• Watch for signs your baby is not feeding well. Your baby should feed 10 to 12 times every day if you are breastfeeding. Your baby should feed every 3 to 4 hours if he or she is given a bottle. Call your baby's healthcare provider if he or she is not feeding well or vomits 2 times in a row.

Follow up with your baby's doctor as directed:

You may get test results during a follow-up visit. Your baby's doctor may recommend a specialist to help manage a health condition. Write down your questions so you remember to ask them during your visits.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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