A nurse is teaching a client who is to begin chemotherapy about a peripherally inserted central catheter (PICC). Which of the following statements should the nurse include in the teaching?

A. "We can draw blood samples from the PICC for diagnostic tests.": A PICC line provides reliable central venous access, and blood samples can be safely drawn from it. Using the PICC for lab collection helps reduce the need for repeated peripheral venipuncture and preserves peripheral veins during chemotherapy treatment. B. "We will replace the PICC every month.": PICC lines do not require routine monthly replacement. They are designed for long-term use and can remain in place for weeks to months as long as they remain functional and free of infection. Routine replacement would increase risk of complications without clinical benefit. C. "We will change the dressing daily.": PICC dressings should not be changed daily unless they become soiled, loose, or wet. Standard care involves changing dressings every 7 days for transparent dressings or every 48 hours for gauze, which helps maintain sterility and reduces infection risk. D. "We can measure your blood pressure in either arm.": Blood pressure should not be taken on the arm with a PICC due to the risk of catheter damage, displacement, or impaired blood flow. BP measurements should be taken on the opposite arm whenever possible to protect the integrity of the catheter.