Four terminologies are recognized to describe phenotypic expression in the Rh blood group system. Two of these use theories of inheritance to define nomenclature related to the system. A third terminology uses the presence or absence of the antigens and an alphanumeric notation, while the fourth utilizes a numbering system that is more suitable for digital/computer platforms. The following pages will describe each of the terminologies, how they are used in practical application, and the interchangeable use of the nomenclature.
Harmening, DM,: Modern Blood Banking & Transfusion Practices, 6th ed. FA Davis, Philadelphia, PA, 2012, p 150.
Blaney, KD and Howard, PR: Basic & Applied Concepts of Blood Banking and Transfusion Practices, 3rd ed. Elsevier, St. Louis, MO, 2013, p 110-111.
