Final answer:
One statement that indicates a need for further instructions is if the client says they can wear their hearing aid while swimming.
Step-by-step explanation:
A statement that indicates a need for further instructions would be if the client says, 'I can wear my hearing aid while swimming.' This statement is incorrect because hearing aids should not be worn while swimming. The moisture and water can damage the hearing aid. Therefore, the nurse should provide further instructions to the client about proper care and usage of the hearing aid.