To ensure patient's safety, the nurse should make sure aside from informing the patient and significant others to finish the treatment prescribed he or she should also make sure the patient is well hydrated like providing fluid replacement such as Oresol or drinks with electrolytes such as Gatorade to avoid dehydration.
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she made a personal choice
I believe the answer is: keeping her room cool
Being in high temperature environment usually increase the level of adrenaline and put your mood into anxiety.
Being in a cool room would bring your mood into a relaxed condition. This would help reducing the adrenaline level in our body, slow down your heart rate, and help you get into a deep sleep.