A 3rd gravida with normal previous 2 pregnancies. Best test to diagnose Rh sensitization in Rh -ve mother is: (A) Direct Coombs' test, (B) 'C' Antigen, (C) Indirect Coombs' test, (D) 'O 'Antigen
Answer is C. In all cases of Rh-negative women irrespective of blood grouping and parity, albumin antibody is detected by indirect Coombs' test.