A client is concerned about the risk of lymphedema after a mastectomy. Which response by the nurse is best?

Rationale: A. While mild numbness or tingling may occur due to nerve damage during surgery, this response does not address the client’s concern about lymphedema, which specifically involves fluid accumulation and swelling due to impaired lymphatic drainage. B. Although radiation therapy increases the risk of lymphedema, the risk still exists after a mastectomy due to lymph node removal. This response provides false reassurance and overlooks an important preventive concern. C. This statement acknowledges the risk but uses inaccurate and confusing language. Lymphedema is not self-limiting — once it develops, it is usually chronic and requires ongoing management. D. This is the best response because it provides accurate and practical teaching. Injury or infection in the affected arm can trigger or worsen lymphedema by increasing lymphatic workload and inflammation. Clients are taught to avoid blood pressure measurements, injections, and venipunctures in that arm and to protect it from cuts, burns, or insect bites.