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There are two basic types of DNA testing that can be done before delivery. These include amniocentesis and CVS, or Chorionic Villus Sampling. An amniocentesis is generally performed during the second trimester of pregnancy. Typically, it would take place between the 14th and the 20th week of pregnancy.
But if the MRI is normal on Day 3 and no oxygen problem occurred during labor and delivery, then oxygen deprivation at birth is an unlikely cause of neonatal encephalopathy, D'Alton said. An MRI done 10 days after birth can indicate the extent of a baby's brain injury, D'Alton said. Brain injuries evolve, and it may take more than a week before the extent is evident on an MRI. Every major obstetrical facility should consider having an MRI available in the neonatal intensive care unit so that sick babies don't have to be transported elsewhere, D'Alton said.