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Results

Prenatal screening results are reported as either:
  1. screen negative or
  2. screen positive
Screening results are not definitive – they provide you with a chance (a numerical probability) for your baby to have Down syndrome, trisomy 18 and/or an open neural tube defect.  Your results are reported back to the ordering health care provider and are usually available 1-2 weeks after the final blood test is performed.