7.3 Dementia, Confusion, Delirium, and Behavior Support

The Three Ds: Dementia, Delirium, Depression

The exam frequently tests whether you can tell these three apart, because the right action depends entirely on which one you are seeing. The biggest distinction is onset and reversibility.

Dementia is a permanent, gradual decline. Delirium is a sudden change in mental status that often has a treatable medical cause — a urinary tract infection, dehydration, low blood sugar, a new medication, or unrelieved pain. On the exam, a resident who was alert yesterday and is suddenly confused, seeing things, or much more agitated today is showing possible delirium, and the correct answer is to report immediately, because something physical may be wrong.

Communicating With Residents Who Have Dementia

You cannot reason a person out of dementia, and trying to do so causes distress. Use these tested techniques:

• Validation — accept the resident's reality and the feeling behind it. If a woman waits for her mother who died long ago, you might say, "You love your mother. Tell me about her," rather than "Your mother passed away." Reality orientation can be cruel for advanced dementia.
• Redirection — gently shift attention to a calmer activity. If a resident is anxious about "going to work," walk with them and offer a familiar task or a snack.
• Simple, short messages — one step at a time, simple words, a calm low voice, and time to respond.
• Approach from the front, use the resident's name, smile, and avoid sudden movement or rushing.
• Keep routines familiar — same caregivers, same order of care, familiar objects and photos.

Avoid the baited wrong answers: do not argue, do not quiz the resident ("Don't you remember me?"), do not use childish baby talk, and do not restrain or scold. Arguing with reality almost always increases agitation, which is why it is a classic wrong choice.

Behavior as Communication, Sundowning, and Safety

When a resident with dementia hits, yells, paces, or refuses care, the exam wants you to treat the behavior as a message about an unmet need, not as misbehavior. Run through likely causes:

• Pain, hunger, thirst, or a full bladder
• Fear, overstimulation, loud noise, or too many people
• Fatigue, infection, or a change in environment or staff
• Boredom or need for activity and human contact

Sundowning is a common pattern of increased confusion, restlessness, and agitation that begins in the late afternoon and evening. Helpful measures include keeping the room well lit before dusk, closing curtains to reduce shadows, reducing noise and caffeine, maintaining a calm routine, limiting daytime napping, and providing reassurance and a familiar presence.

When to Report Right Away

Report to the nurse immediately for: any sudden change in confusion or alertness, new aggression or hallucinations, a fall, fever, new pain, or any behavior that threatens the safety of the resident or others. The aide's job is to keep everyone safe, reduce triggers, communicate calmly, and report — never to physically restrain a resident or argue them into compliance.

Wandering, Safety, and a Dementia-Friendly Environment

Many residents with dementia wander or try to leave the unit, which is a safety problem rather than a discipline problem. The aide keeps the environment safe and supportive instead of confining the resident:

• Make sure the resident wears an ID bracelet and that exit alarms and secured doors work per facility policy.
• Provide safe places and routes to walk, and redirect wandering toward a purposeful activity.
• Reduce clutter and tripping hazards; ensure good lighting and clear paths.
• Keep personal items, photos, and familiar objects nearby to provide orientation and comfort.
• Never use restraints to stop wandering — restraints increase agitation, falls, and injury and are restricted by law.

Approaching and Assisting Safely

Approach from the front and at eye level, identify yourself, and explain what you are about to do in one short step at a time. Give the resident time to respond and let them do what they can for themselves; rushing causes resistance. If a resident becomes agitated during a task, it is often best to stop, ensure safety, and try again later rather than force the care.

Don't Forget Depression

Residents with dementia can also be depressed, and depression can look like worsening memory. The aide does not have to sort out the cause — that is the nurse's and clinician's job — but should report new withdrawal, tearfulness, appetite or sleep changes, and any statement of hopelessness. Treating every behavior in a person with dementia as "just the dementia" is a trap; a sudden change still deserves a report, because it may signal delirium, pain, depression, or another treatable problem.