what is a normal nt measurement
It's a good idea to take your husband or a friend with you, to share the experience and be with you when you get the result. An NT measurement of up to 2mm is normal at about 11 weeks, and up to about 2.8mm by 13 weeks and six days.The NT normally grows in proportion with your baby (Nicolaides et al 1999) .t's a good idea to take your husband or a friend with you, to share the experience and be with you when you get the result. An NT measurement of up to 2mm is normal at about 11 weeks, and up to about 2.8mm by 13 weeks and six days.