Newborn Screening Clinical Care Coordination Program - Overview

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Ten Things Parents Want To Know About Newborn Screening From Their Baby's Health Professional (English/Spanish)

1. Newborn screening is important for your baby's health! It's a simple test to check for a number of rare disorders. 

2. Babies with these disorders may look healthy at birth. Many problems can't be seen.

3. Finding them early could help your baby avoid illness, mental disability, physical disablity, and even death.

4. All babies are tested twice. The first test is 1 or 2 days after birth at the hospital. The second test is done 7 to 14 days of age at the doctor's office or clinic. 

5. A few drops of blood are taken from your baby's heel and put on a blood spot card. The card is sent to the state laboratory.

6. The test results go to the birth hospital or your doctor. They will call you if any problem is found. 

7. Some babies may need more tests. IT IS VERY IMPORTANT TO GET THE NEW TESTS QUICKLY IF YOUR DOCTOR RECOMMENDS THEM

8. The lab stores the blood spot cards for up to 2 years and may be used to ensure laboratory tests, equipment, and supplies are working right, to develop new tests, and for the Department of State Health Services studies of diseases that affect public health. 

9. If you give your OK, the blood spot cards will be stored for up to 25 years, and may be used for public health research outside of the Department of State Health Services. You, the parent/guardian, decide what the lab does with your baby's blood spots after testing by completing and sending in a decision form. The decision form will be given to you when the blood spots are collected. Your baby's information stays private and secure no matter what your decision.

10. Talk to your baby's doctor if you have any questions. You may also call to speak to a nurse at: the Newborn Screening Unit 1-800-252-8023 ext. 3957 or call 1-888-963-7111 ext. 7333 to ask about blood spot card records.  

Quick Reference to Newborn Screening Disorders

Biotinidase Deficiency (BIOT) - BIOT is an enzyme deficiency that occurs in about 1 in 60,000 U.S. newborns and can result in seizures, hearing loss, and death in severe cases. Treatment is simple and involves daily doses of biotin. (1)

Congenital Adrenal Hyperplasia (CAH) - 21-Hydroxylase Deficiency - CAH is caused by decreased or absent production of certain adrenal hormones. The most prevalent type is detected by newborn screening in about 1 in 9,000 Texas newborns. Early detection can prevent death in boys and girls and sex misassignment in girls. Treatment involves lifelong hormone replacement therapy. (1)

Congenital Hypothyroidism (CH) - Inadequate or absent production of thyroid hormone results in CH and is present in about 1 in 2,000 Texas newborns. Thyroid hormone replacement therapy begun by 1 month of age can prevent intellectual and growth disabilities.(1)

Cystic Fibrosis (CF) - An inherited disease that affects the lungs, digestive system, and overall growth. People with CF have thickened secretions, which clog the lungs and cause breathing problems. It can also affect the pancreas and make it hard to break down and absorb food. (1)

Galactosemia (GAL) - Galactose-1-Phosphate Uridyltransferase (GALT) Deficiency - Failure to metabolize the milk sugar galactose results in GAL and occurs in about 1 in 50,000 U.S. newborns. The classical form detected by newborn screening can lead to cataracts, liver cirrhosis, intellectual disability and/or death. Treatment is elimination of galactose from the diet usually by substituting soy for milk products. (1)

Homocystinuria (HCY) - HCY is caused by an enzyme deficiency that blocks the metabolism of an amino acid that can lead to intellectual disability, osteoporosis and other problems if left undetected and untreated. The incidence is approximately 1 in 350,000 U.S. newborns. Treatment may involve a special restricted protein diet and supplemental medicines, including Vitamin B6. (1)

Maple Syrup Urine Disease (MSUD) - MSUD is a defect in the way that the body metabolizes certain amino acids and is present in about 1 in 200,000 U.S. newborns. Early detection and treatment with a special restricted protein diet can prevent death and severe intellectual disability. There is an increased risk in Mennonites. (1)

Medium Chain Acyl-CoA Dehydrogenase (MCAD) Deficiency - The most common disorder in the way the body metabolizes fatty acids is called MCAD deficiency. Undetected, it can cause sudden death. Treatment is simple and includes ensuring frequent food intake. The incidence from newborn screening is not yet known, but is thought to be approximately 1 in 15,000 U.S. newborns. (1)

Phenylketonuria (PKU) - An enzyme defect that prevents metabolism of phenylalanine, an amino acid essential to brain development, is known as PKU and occurs in approximately 1 in every 23,000 Texas newborns. Undetected and untreated with a special restricted protein diet, PKU leads to irreversible intellectual disability. Persons of European descent are at increased risk. (1)

Severe Combined Immunodeficiency (SCID) - SCID is a rare, serious group of disorders involving the immune system.  The immune system is composed of T and B lymphocytes or T and B cells, the white blood cells that are responsible for fighting infections caused by viruses, bacteria and fungi. Babies with SCID are not able to fight infection. They appear healthy at birth but can become sick very quickly when exposed to common illnesses.  SCID is so rare that medical providers might not diagnose it until it is too late to provide lifesaving treatment. (1)

Sickle Cell Disease (SCD) - includes Sickle Cell Anemia (Hb SS), Sickle Beta Thalassemia (Hb S/Th) and Sickle-Hemoglobin C Disease (Hb S/C) - Sickle cell anemia (Hemoglobin-SS-Disease) is the most prevalent SCD and causes clogged blood vessels resulting in severe pain and other severe health problems. Other common SCDs include Hemoglobin-SC-Disease and various thalassemias. Newborn screening detects about 1 in 2,500 Texas newborns with SCD annually. Persons of African or Mediterranean descent are at an increased risk. Early treatment with daily penicillin prevents death in the first few years of life. (3)

Tyrosinemia Type I (TYR 1) - TYR is caused by a deficiency in the liver of one enzyme that breaks down tyrosine. If not treated, the condition causes severe liver disease and other serious health problems. Treatment consists of medication including vitamin D and nitisinone, and a special restricted protein diet. The estimated incidence is 1 case in every 100,000 live births. (1)

Other Fatty Acid Oxidation (FAO) Disorders include Carnitine Uptake Defect (CUD), Long-Chain Hydroxyacyl-CoA Dehydrogenase Deficiency (LCHAD), Trifunctional Protein Deficiency (TFP) and Very-Long-Chain Acyl-Co A Dehydrogenase Deficiency (VLCAD) - Disorders besides MCAD deficiency, other FAO disorders may be detected through newborn screening. They are usually described in categories based on the length of the fatty acid involved. Undetected and untreated they can cause seizures, coma, and even death. Treatment may include a low fat diet, frequent food intake, supplementation with L-Carnitine (Carnitor) and medium chain triglycerides. The incidences of various FAO disorders are not known since it is only recently that early detection through newborn screening has occurred. (4)

Organic Acid (OA) Disorders include 3-Methylcrotonyl-CoA Carboxylase Deficiency (3MCC), Beta-Ketothiolase Deficiency (BKD), Glutaric Acidemia Type I (GAI), Hydroxymethylglutaric Aciduria (HMG), Isovaleric Acidemia (IVA) Methylmalonic Acidemia(MMA) (Cbl A and Cbl B forms) ( Cbl A,B), Methylmalonic Acidemia (mutase deficiency form) (MUT), Multiple Carboxylase Deficiency (MCD) and Propionic Acidemia (PROP) - Organic acidemias are a group of metabolic disorders that lead to accumulation of organic acids in the blood and urine and may be detected in newborn screening through analysis of acylcarnitine profiles. Symptoms can be diminished by restricting protein in the diet and supplementation with vitamins and/or L-Carnitine. Because newborn screening for these disorders is relatively new, the degree of occurrence in newborns is not yet known. (9)

Urea Cycle Disorders (UCD) include Argininosuccinic Acidemia (ASA) and Citrullinemia (CIT) - A UCD is a genetic disorder caused by a deficiency of one of the enzymes responsible for removing ammonia from the blood stream. Some UCDs may be detected as a part of newborn screening. They are characterized by seizures, poor muscle tone, respiratory distress, and coma, and result in death if left undetected and untreated. Treatment is by a special restricted protein diet and medications including phenylbutyrate to remove ammonia. Because newborn screening for these disorders is relatively new, the degree of occurrence in newborns is not yet known. (2)

Total number of disorders screened for is 30.


Pediatric endocrinology, hematology and metabolic consultants are available at several centers throughout the state to assist the private physician with diagnosis and treatment of children identified through the program. 

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Last updated February 11, 2013