how is a newborn genetic testing
Newborn screening usually begins with a blood test 24 to 48 hours after the baby is born. The test is performed by pricking the baby's heel to collect a few drops of blood.The blood is placed on a special piece of paper and sent to a laboratory for analysis.Parents can ask for a copy of the test results, which are sent to the baby's doctor or clinic. Sometimes a repeat blood test is required, particularly if the first test was done before the baby was 24 hours old.If the results of the test are abnormal, additional testing is required to confirm the result.he blood is placed on a special piece of paper and sent to a laboratory for analysis. Parents can ask for a copy of the test results, which are sent to the baby's doctor or clinic. Sometimes a repeat blood test is required, particularly if the first test was done before the baby was 24 hours old.