Rhesus Factor

The video explains blood types, focusing on the Rh factor, a protein on red blood cells. Most people are Rh positive, meaning they have this antigen, while 15% are Rh negative. If Rh negative individuals receive Rh positive blood, their immune system attacks the foreign antigen, causing complications. This reaction is particularly concerning for Rh negative pregnant women. If their baby is Rh positive, the mother's immune system may produce antibodies against the baby's blood cells, leading to health issues. To prevent complications, pregnant women are routinely tested for the Rh factor.

What percentage of people are Rh negative?

• 10%

• 15%

• 25%

• 20%

What happens when an Rh negative person receives Rh positive blood?

• The blood is accepted without any issues.

• The immune system ignores the Rh antigen.

• The Rh antigen is converted to Rh negative.

• Antibodies are produced to attack the Rh antigen.

Why is it important for pregnant women to be tested for the Rh factor?

• To prevent immune reactions during blood transfusions.

• To avoid complications if the baby is Rh positive.

• To determine the baby's gender.

• To ensure the mother has enough red blood cells.

What can occur if an Rh negative mother is exposed to Rh positive blood during delivery?

• The baby will become Rh negative.

• The delivery will be delayed.

• The mother's immune system will produce antibodies.

• The mother's blood type will change.

What is the potential risk for a second pregnancy if the first baby was Rh positive?

• The second baby will inherit the Rh negative gene.

• There is no risk involved.

• The mother's immune system may attack the second baby's red blood cells.

• The second baby will definitely be Rh negative.