An 82-year-old client with moderate Alzheimer disease becomes restless at 1745, paces near the unit exit, and calls for her husband, who died 3 years ago. She last voided at 1130, drank 480 mL of fluid at lunch and afternoon snack, and keeps pressing on her lower abdomen and tugging at her waistband. The room lights are on. Which action should the nurse take first?

Quick answer
Option 3: walk her to the bathroom and help with toileting.

Why this is correct
Agitation in dementia is frequently communication of discomfort that the client cannot put into words. The stem gives specific cues: last void 6 hours ago, 480 mL intake, pressing on the lower abdomen, and pulling at the waistband. Relieving a probable full bladder removes the trigger, and walking with her also redirects the exit-seeking in a calm, non-confrontational way.

Easy analogy or mental picture
A toddler who cannot say 'I need the bathroom' fidgets and fusses; soothing music will not help until the actual need is met.

Memory hook
Agitated in dementia? Check the body before the room: bladder, bowel, pain, hunger, thirst.

NCLEX decision rule
When a client who cannot communicate clearly shows new agitation, first address the physical need the stem points to, then modify the environment.

Why the other choices are wrong
Reorienting to her husband's death (option 1): tempting because orientation is taught for confusion, but repeatedly confronting a person with moderate dementia about a loss makes her relive the grief and escalates agitation; validation and redirection are preferred. Adjusting light and shadows (option 2): an evidence-based sundowning measure, and the lights are already on, but it does not address the cues of bladder discomfort. Music and noise reduction (option 4): a valid calming strategy that may help later, but it leaves the likely cause of the agitation untreated.