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A member asked:
44wf.12wks pregnant.did claritest. (it was neg)my ob wants to do cvs still. why ? it tests for the same conditions. also should i do microarray?
A doctor has provided 1 answer
You are high risk: tests like claritests are screening tests and do not give a definite diagnosis, only most likely normal or most likely not normal. Tests like this are 98-99% accurate for things like down syndrome but have much lower rates for other genetic abnormalities. CVS is a diagnostic test, meaning it looks exactly at the baby's chromosomes and can give you a for sure diagnosis.
Answered 9/22/2017
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