During a home visit, the nurse assesses a client with Alzheimer's disease who recently started a new prescription for rivastigmine. The caregiver reports that the client seems to be thinking more clearly but is not sleeping well at night. Which action should the nurse take?

Choice A reason: Insomnia can be a common and temporary side effect when starting rivastigmine. Educating the caregiver about this potential side effect helps them understand that it may resolve over time and reassures them about the safety of the medication.Choice B reason: Advising that the purpose of the medication is to promote sleep is incorrect. Rivastigmine is used to improve cognitive function in Alzheimer's disease, not specifically to promote sleep.Choice C reason: Instructing the caregiver to withhold the medication without consulting the healthcare provider is not advisable. Adjusting or discontinuing medication should always be done under medical supervision.Choice D reason: Notifying the healthcare provider about increasing the dosage for insomnia is inappropriate. The focus should be on managing the side effect without altering the intended therapeutic effect of the medication.