📖 what
What is the Rh factor?
Human BiologyBlood
Quick Answer
The Rh factor is a blood group marker, most famously the D antigen, found on red blood cells. People are often described as Rh-positive or Rh-negative.
The Full Story
The Rh system is another major blood group system, separate from ABO. The most important marker is the D antigen: people who have it are Rh-positive, and people who do not are Rh-negative. Rh status matters in transfusions and in pregnancy, because an Rh-negative mother can form antibodies against an Rh-positive fetus in some cases. Medical screening and preventive treatment have greatly reduced complications.
Key Facts
1.The D antigen is the key Rh marker
2.People are often classified as Rh-positive or Rh-negative
3.Rh incompatibility can affect some pregnancies
YouTube Angle
Suggested video title for this topic:
"The blood marker that matters in pregnancy and transfusion"