Which statement about immunosuppressant therapy is true?

• A. Immunosuppressants cure the underlying disease
• B. They should be stopped if blood pressure is controlled
• C. They prevent organ rejection by suppressing the immune response
• D. They have no role in transplant care

Answer: (C)

Immunosuppressants work by dampening the immune system so it does not attack a transplanted organ. The body sees the donor organ as foreign and would normally mount a rejection response; these drugs reduce that response and help the graft survive. They do not cure the underlying disease that led to organ failure, and they must be continued long-term because stopping them can lead to rejection. They are a central part of transplant care, though they come with infection risk and other side effects and require careful monitoring. Therefore, the statement that immunosuppressants prevent organ rejection by suppressing the immune response is true.