Fig. 1. Flowchart for RhD typing. (A) Serologic and genetic testing of Asian-type DEL with determination algorithm of Rho(D) immune globulin in East Asians. (B) Serologic and genetic testing of weak D types 1, 2, 3, 4.0, and 4.1 with determination algorithm of Rho(D) immune globulin in non-East Asians.
Abbreviations: RBC, red blood cells; RhIG, Rho(D) immune globulin.

Ann Lab Med 2024;44:307~313 https://doi.org/10.3343/alm.2023.0356