TDee

I just answered this question. My Score PASS

I just answered this question. My Score PASS

This question was raised during a discussion because the commonly held belief is that foetal cells will end up a the bottom of the test tube after centrifugation, however after looking at the BSCH guidelines on FMH, this document states that foetal RBC will sit closest to the plasma/RBC interface. So which is correct? At the bottom or at the top?

If a maternal sample from a woman who has had a feto-maternal haemorrhage (FMH) is centrifuged where will the foetal red cells lie, at the bottom or the top of the red cell concentrate?