The three things involved in Renal Transplantation are as following:
Open organ retrieval ( that is the availability of organ either from any donor or recently died person).
Standard preparation ( means standard solution are solutions with a known concentration of a substance that are used in chemistry and analytical chemistry to identify the concentration of unknown substance).
Allotransplantation ( that is transplantation of cells, tissues or organ to a recipient from genetically non- identical donor of the same species).