You are a bit late for a chromosomal scan which should have been done between 11-13 wks followed by a combined dual test
In the scan referred here ,we look for nuchal transclucency nasal bone rule out evidence of TR DV flows are noted along with other features
So the value of NT should be looked for in charts at its gestational age at 13 w 2 d and CRL measured
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Answered2017-06-05 18:41:18
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