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Arkansas Department of Health Newborn Screening Result

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					                                  Arkansas Department of Health
                              Newborn Screening Result: Elevated C3
                             Infant may have an Organic acid disorder
                                   Information Sheet for Parents

You have just heard that your infant may             What are the signs and symptoms of organic
have Organic acid disorder. Please                   acid disorders?
understand that the newborn screening is just        Symptoms often appear in the first few weeks of
that – a screening test. Not all cases that are      life. Symptoms can include a lack of appetite,
screened positive will be confirmed to have          vomiting, seizures, lack of energy, muscle
the diagnosis. The below information is              irritability, and low body temperature. Illness
meant to keep you informed while further             can be triggered by infections or by fasting. If
testing is done to evaluate the newborn              left untreated, organic acid disorders may cause
screening result.                                    serious medical problems including brain
                                                     damage, coma and even death.

What is an Organic Acid disorder?
Children with organic acid disorders do not have     How are organic acid disorders diagnosed?
enough of a specific enzyme that helps break         After receiving a positive newborn screen, the
down certain proteins. This leads to an              most important thing parents can do is be sure
abnormal buildup of particular acids called          that their baby goes in for a new specimen to be
organic acids. Abnormal levels of organic acids      collected and tested as soon as possible. If the
in the blood (organic acidemia), urine (organic      baby does have an organic acid disorder, there
aciduria), and tissues can be toxic and cause        are treatments available. A pediatric metabolic
serious health problems. Most cases of organic       doctor and geneticist will help confirm a
acid disorders show symptoms within the first        diagnosis.
two weeks after birth.
                                                     How are organic acid disorders treated?
Why is newborn screening done for organic acid       The baby’s primary doctor will work with a
disorders?                                           metabolic doctor and a dietician to treat the
Newborn screening for organic acid disorders         condition. Organic acid disorders are treated
offers early detection so that treatment can begin   with low-protein diet, special infant formula and
earlier. Early detection can help prevent many       medical foods. Sometimes, other protein
of the complications that may arise should the       supplements may need to be added to the baby’s
disorder go untreated during infancy.                diet. Any changes in diet should be made under
                                                     the guidance of a dietician. Individuals must
Does a positive newborn screening result mean        follow the special diet for the rest of their lives.
that a baby has an organic acid disorder?
Probably, though some babies who are screened        Where can I get additional information?
will be identified as “positive” on screening, but
later found to not have the disorder. Further        http://www.arkansas.gov/
testing needs to be done in order to determine if    newborn_screening/index.html
the baby has the disorder, or to rule it out as a
“false positive”.

				
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posted:4/8/2013
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