Question

Patient 1

Image description: Agglutination in well B, no agglutination in well A or Rh.

Patient 2

Image description: No agglutination in well A, B, or Rh.

For patient 1 and 2- Which antibody did the blood react to?

What antigens do these two sample have?

What's the blood type?

Answer 1

Blood group of patient 1 is B -ve

• which contain antigen B and antibody A . The blood react to antibody B.
• Blood sample doesnot have Rh antigen , hence negative.
• This patient can recieve blood sample from B -ve and O-ve blood sample.
• Addition of any other Blood group leads to antigen-antibody reaction and cause agglutination , clumping of RBC occurs
• Blood can be given to B+ve , B-ve , AB +ve , AB-ve

Blood group of patient 2 is O -ve,

• which doesnot contain A or B antigen , but antibody A and B is present.
• Blood sample doesnot have Rh antigen , hence O-ve
• Due to absence of antigen , no antibodies will react to this blood sample .Hence universal donor , blood can given to any other blood group patients.
• This patient can recieve only blood from O-ve blood sample.