A client complains of feeling "off balance.". The nurse should consider that the client might have a disorder affecting the:
1. Vestibular system.
2. Cochlea.
3. Middle ear.
4. Organ of Corti.
Vestibular system.
Rationale: The vestibular system, which is part of the inner ear, is responsible for balance. The cochlea, which is also located in the inner ear, is responsible for hearing. The bones in the middle ear vibrate with sound and do not affect balance. The organ of Corti is located in the cochlea, which is responsible for hearing.
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