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Low fetus fraction
I am 30, my 1st pregency affected by down syndrome at 2month, my only ro60kd positive and aptt corrected , drvvt 0.94, then after in my 2nd pregency i m 12w 2d pregent , my nt scan 2.1mm, crl 59mm nasal bone 2.2mm and given blood sample for nipt, today i knew that due to low fetus fraction <2% my nipt not done, lab doing 2nd draw from same blood sample.... I am taking inclax injection daily with ecospirin & taking hcq300
So, low fetus fraction means how many % of chance having chromosomal abnormality?
Low fetus fraction means the sample is not sufficient to do test and give results
So it may require repeat test
The parameters like crl nasal bone nt are in normal range no need to get worried
As you have a previous history needs a detailed evaluation
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