Final answer:
Carla should observe for signs of new medication use, sleep difficulties, and physical symptoms in Mr. Brennan to address his sleep problems.
Explanation:
Carla, the nursing assistant, should observe for the following signs in Mr. Brennan:
- Whether Mr. Brennan is taking a new medication: Medications can sometimes cause sleep disturbances as a side effect.
- Difficulty sleeping, early-morning awakening, or oversleeping: These are symptoms indicating sleep issues that Carla should pay attention to.
- Weight loss, increased heart rate, and other physical symptoms: These could be signs of underlying health issues affecting Mr. Brennan's sleep.
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