A 40 year old female patient complains of excessive bleeding. Patient gives a history of road traffic accident 5 hours ago and had a lacerated wound on lower back region. Blood grouping test reveals presence of antigen A and antigen H. Anti Rh D antibody and anti B antibody are also present. This patient can receive transfusion from a donor with blood group?
→ Apart from A< B and O, RBC of type O contains large amount of another antigen called H substance.
→ H substance is genetically different from ABO, but is a precursor of A and B antigens.
→ An O group individual who inherits A or B genes, but fails to inherit H gene from either parent is called Oh phenotype or Bombay blood group.
A positive
O positive
B negative
Bombay blood group