Which action should be avoided to minimize lymphedema risk in a patient who had a mastectomy?

• A. Inserting an IV into the operative arm
• B. Elevating the arm
• C. Performing gentle range-of-motion exercises
• D. Wearing a compression garment as advised

Answer: (A)

After mastectomy with lymph node removal, the arm’s lymph drainage is impaired, so anything that injures or irritates that limb can worsen edema and raise the risk of lymphedema. Inserting an IV into the operative arm is avoided because needle insertion and IV lines can damage remaining lymph vessels, increase inflammation, and promote swelling in a limb that's already at higher risk. To protect the arm, use the other arm for IVs and blood draws when possible, and follow measures that promote drainage—elevate the limb, perform gentle range-of-motion exercises, and wear the compression garment as prescribed.