Difficult: It is hard to make a distinction that small given the margin of error of the machine. Thye measurements are always given as a range.
Answered 2/19/2013
5.3k views
Sac measurement: Size of the sac holding the embryo is measured in 3 dimensions, averaged, and compared to a chart that gives the age of the embryo.
Answered 3/20/2013
5.2k views
A doctor has provided 1 answer
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
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