As nt is measured usually between 11 week to 13 week 6 days,with gestational age along with crl what is right value of nt....
Sometime if we take nt measurement in 12 week it shows slightly increase and again if we repeat it in 13 week it show ur nt within normal range
Why...
As in case of my sister
Nt scan at 12 week 4 days crl 72 mm is 2.4 mm
Nt scan at 13 week 4 days crl 76.3mm is 2.3mm
And nipt test shows low risk
My NT measures 2.7 at 14 weeks. The double marker test result is negative and states "low risk" for all t
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