Answer:
I) Blood type (A, B, AB, O)
II) Rhesus Factor
Step-by-step explanation:
Aplastic refers to the inability of the body to create new cells, such that tissue cannot grow or regenerate.
Anaemia refers to the medical condition in which the capacity of the blood to transport oxygen to the tissues is reduced, either because of too few red blood cells, or because of too little hemoglobin, resulting in fatigue.
Rhesus Factor is an antigen appearing on the surface of the red blood cells of most (85%) humans. An incompatibility between the Rh-blood types of the CLIENT and DONOR may cause serious disease for the CLIENT.