An increased risk does not mean a chromosome disorder has been diagnosed. Your doctor or genetic counselor will discuss additional testing which can determine whether your baby has a disorder or if there are other explanations for this test result. For example, you may be further along in the pregnancy than previously thought, you may have twins, or the blood protein levels may be normal variations. These reports do not eliminate the possibility the fetus may have birth defects, mental retardation, Down syndrome, Trisomy 18, other chromosome abnormalities, or other disorders not detectable by these screening tests. Multiple gestation screening is not as sensitive as singleton.
All reports rely on the patient s clinical information.
An ONTD is a type of birth defect which occurs when the developing baby s spine or skull does not form completely. ONTD s are among the most common serious types of birth defects. If the defect occurs around the head, the baby cannot survive long after birth. If the defect is along the spine, nerve damage occurs and the child usually has paralysis from the point of the lesion down. The condition may require repeated surgeries and life span is usually reduced.