The best time to collect the sample is while the baby is still in the hospital and at least 24 hours after delivery. The state required test is performed by pricking the baby's heel and taking a blood sample. At the same time, a small sample of blood can also be dried on a piece of absorbent paper, which can be sent to Baylor for supplemental testing. There is no additional discomfort to the baby. The testing of the sample in the lab takes about two minutes.
Results are usually available two to three days after the lab receives the sample.
A letter explaining the findings and suggestions for follow-up testing, if necessary, is sent to the pediatrician or family doctor. If a definite diagnosis is made, a phone call will immediately be placed to the doctor so treatment can begin. Dietary therapy or vitamins have proven effective in the treatment of many of these disorders. Sometimes a retest or an additional test may be requested. The most common reason for a retest is the first sample had too little blood for a reliable result.