Blood Groups

Question 1

Where are antigens located and what are they composed of?

Answer 1

Antigens are located on the surface of erythrocytes and are composed of glycoproteins and glycolipids

Question 2

ABO blood group.

Which blood group is the universal donor and which blood group is the universal recipient?

Answer 2

Blood type O is the universal donor because erythrocytes have neither A or B antigens for antibodies to attach to.

Blood type AB is the universal recipient because it has both the A and B antigen and has no antibodies in plasma.

Question 3

Rhesus Blood Group

What is meant by Rhesus negative and Rhesus positive?

Answer 3

Rhesus antigen is another surface antigen found on erythrocytes.

Rh+ have Rhesus antigens on the surface of erythrocyte

Rh- do not have Rhesus antigens on the surface of erythrocyte

Question 4

True or False.Anti-Rhesus antibodies are produced in rh- individuals only if they come into contact with the Rhesus antigen

Answer 4

True

Question 5

How would you combat Rh incompatibility?

Answer 5

Would only occur during pregnancy if mother was Rh- and baby Rh+.

An injection of anti-rh antibodies given to mum bind to and inactivate foetal rh antigens