After kidney transplantation, what is typically required to protect graft function?

• A. Lifelong immunosuppressive therapy along with regular monitoring.
• B. No medications needed after stabilization.
• C. Vaccinations alone prevent rejection.
• D. Only antibiotics are required.

Answer: (B)

The key idea is that preventing rejection and preserving the transplanted kidney requires ongoing immunosuppression for life, with regular monitoring. The body naturally recognizes the new kidney as foreign, so a combination of medications is used to suppress the immune response and prevent both acute and chronic rejection. Maintenance regimens typically include a calcineurin inhibitor (like tacrolimus or cyclosporine), an antimetabolite (such as mycophenolate), and often a corticosteroid. These drugs are given for life, though dosages may be adjusted over time to balance preventing rejection with minimizing side effects.

Regular monitoring is essential and includes checking drug trough levels to ensure adequate immunosuppression, assessing kidney function (creatinine/eGFR), monitoring blood pressure and metabolic parameters, and watching for infections or other complications. Vaccinations play a protective role against certain infections but do not replace the need for immunosuppressive therapy. Antibiotics may be used for infection prevention, but they do not protect graft function on their own.

Without ongoing immunosuppression, the immune system would reject the transplanted organ, leading to loss of graft function.