Direct Coomb's test detects:: (A) Antibodies attached to RBC Surface, (B) Antibodies in the serum, (C) Antigens attached to RBC Surface, (D) Antigens in the serum
Answer is A. Answer is A (Antibodies attached to RBC Surface) Direct Coomb's test detects IgG Antibodies (or complements) attached to the surface of RBCs. Indirect Coomb's test detects IgG antibodies in the serum (e.g. Anti-D Antibodies).