Final answer:
The nurse should plan to delegate the task of assisting with ambulation after surgery to the CNA.
Step-by-step explanation:
When delegating client care tasks to a CNA, a nurse should plan to delegate tasks that fall within the CNA's scope of practice and do not require advanced medical knowledge or decision-making. Based on the options given, the nurse should plan to delegate the task of Assisting with ambulation after surgery to the CNA. This task involves helping the client walk or move around after a surgical procedure, which is within the CNA's scope of practice and does not require advanced medical expertise.