Direct globulin test is positive in?: (A) PNH, (B) Sickle cell anemia, (C) Thalassemia, (D) Paroxysmal cold hemoglobinuria
Answer is D. Ans. (d) Paroxysmal cold hemoglobinuria(Ref: Robbins 9th/pg 642; 8th/pg 654)Direct globulin test is positive in Paroxysmal cold hemoglobinuria, as anti P antibody is formed.