Know Your Blood Group Types With Blood Type Chart

Blood groups or antigens are determined by either sugar or proteins on the surface of the red blood cell. The ABO system has A and B antigens and the Rh system has many antigens but D is the most important.

ABO types

These were the first type discovered.

  • Group A – If you have type A antigens on the surface of your red blood cells, you also have anti-B antibodies in your plasma.
  • Group B – If you have type B antigens on the surface of your red blood cells, you also have anti-A antibodies in your plasma.
  • Group AB – If you have type A and type B antigens on the surface of your red blood cells, you do not have antibodies A or B antigens in your plasma.
  • Group O – If you have neither type A nor type B antigens on the surface of your red blood cells, you have anti-A and anti-B antibodies in your plasma.

Rh types

There are 5 main Rhesus (Rh) antigens on red cells – C, c, D, E, e.
The most important of these is the Rh D group. The D antigen on the red cell is what gives you the positive (+) or the negative (-) after the letter A, B, AB or O. In general, Rh negative blood is given to Rh-negative patients, and Rh positive blood or Rh negative blood may be given to Rh positive patients.

  • The universal red cell donor has Type O negative blood type.
  • The universal plasma donor has Type AB blood type.

Blood Matches

Group O can donate red cells to anybody. It’s the universal donor O
Group A can donate red cells to A’s and B’s
Group B can donate red blood cells to B’s and AB’s   
Group AB can donate to other AB’s, but can receive from all others

Donor

Recipient

O

O

A

B

AB

A

X

A

B

X

B

X

X

B

AB

AB

X

X

X

AB

 

Blood Type Determination

It’s inherited. Like eye color, blood type is passed genetically from your parents. Whether your blood group is type A, B, AB or O is based on the blood types of your mother and father.

This chart shows the potential blood types you may inherit. 

 

Parent 1

AB

AB

AB

AB

B

A

A

O

O

O

Parent 2

AB

B

A

O

B

B

A

B

A

O

Possible
blood
type
of
child

O

       

X

X

X

X

X

X

A

X

X

X

X

 

X

X

 

X

 

B

X

X

X

X

X

X

 

X

   

AB

X

X

X

   

X

       

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