Answer: the primary cause for the development of hypertension after 6 years of kidney transplant is chronic graft rejection.
Step-by-step explanation:
Transplantation refers to the act of transferring cells, tissues,or organs from one site to another. Genetic and clinical studies have shown that human leucocyte antigens in recipient and donors are the important antigens responsible for the acceptance or rejection of the graft. A chronic graft rejection occurs when a successful transplant gradually loses its function over a period of time. This type of reaction is seen in renal transplants and can occur months to years after transplantation.