Based on the detection of free circulating fetal DNA ("cff DNA") present from the 7th SA in maternal blood, our kit allows early diagnosis (11th SA) of the fetal RHD genotype in the context of an Rh- woman pregnancy. Performed on a simple maternal blood sample, this test avoids unnecessary and potentially risky injections of anti-D immunoglobulins and reduces the follow-up of RhD- female pregnancies. 
It is prescribed by gynecologists and midwives and performed by accredited laboratories.