Final answer:
When an elderly patient becomes hard of hearing, they may exhibit difficulty understanding and communicating with others, resulting in speech that is difficult to understand.
Step-by-step explanation:
When an elderly patient becomes hard of hearing, they are likely to exhibit difficulties in understanding and communicating with others. This can manifest in different ways, but the characteristic that the nurse might expect to see is that the patient's speech is difficult to understand. Due to the hearing impairment, the patient may have trouble perceiving higher frequencies, making speech sound indistinct.