Direct Coomb's test is positive in
A
Haemolytic transfusion reaction
B
Autoimmune haemolytic anaemia
C
Haemolytic disease of newborn
D
Transfusion associated febrile reaction
E
Paroxysmal nocturnal hemoglobunuria
Correct Answer: Haemolytic transfusion reaction, Autoimmune haemolytic anaemia, Haemolytic disease of newborn