5.1 Dementia, Delirium, and Behavioral Symptoms

Why cognitive care is tested in Missouri

Missouri treats cognitive and behavioral care as core CNA work, not an optional specialty. The Missouri DHSS CNA page says the state-approved course includes resident rights, social and psychological problems, and methods of caring for mentally confused residents, including residents with Alzheimer disease.

The 2026 Headmaster/D&S handbook also places terms such as Alzheimer, cognitively impaired, confused resident, de-escalation, dementia, depression, elopement, mental health, and validation-style communication in the knowledge vocabulary. On test day, expect questions where the safest answer protects dignity and reports changes instead of arguing, restraining, diagnosing, or ignoring the resident.

Under RSMo Section 198.082, the Missouri CNA provides direct resident care under licensed-nurse supervision. That matters in dementia questions because a CNA may observe, assist, cue, redirect, record, and report, but does not decide that a resident has a urinary tract infection, prescribe a restraint, change a behavior plan, or tell a family member that a new symptom is harmless. The exam rewards the aide who says exactly what was seen: “Mrs. L. was oriented at breakfast, but at 2 p.m. she was pulling at her gown, sweating, and unable to tell me where she was.”

Dementia, delirium, depression, and behavior

Dementia changes how a resident processes information. It does not remove the resident's rights. Knock, identify yourself, explain care, provide privacy, and ask permission in the same respectful way you would with any resident. If a resident refuses a bath, the CNA does not force the washcloth into the resident's hand or threaten consequences. Try a calm explanation, offer a simple choice such as “face first or hands first,” protect immediate safety, and report the refusal to the nurse.

Communication that reduces escalation

Use short sentences, one step at a time, a calm face, and familiar cues. Ask yes-or-no questions when choices are overwhelming. If the resident says, “I need to go home; my children are waiting,” the safest response is usually to acknowledge the feeling and redirect: “You are worried about your children. Let us sit here and look at your photo album while I check with the nurse.” Arguing that the children are grown often increases fear because the resident may not be able to use that information.

Behavior is often a symptom. A resident who hits during dressing may have shoulder pain, cold skin, embarrassment, hearing loss, or fear because the aide approached too quickly. A resident who keeps standing may need the toilet, be looking for a spouse, or be reacting to noise. A resident who pockets food may have dysphagia or fatigue. The CNA's job is to slow down, make the environment safer, offer comfort within the care plan, and report the pattern.

Missouri scenarios and traps

Scenario: During an evening shift in a Jefferson City long-term care facility, a resident with known dementia suddenly becomes much more confused, has a flushed face, and tries to climb out of bed. Do not label the resident “combative” and walk away. Lower the bed, keep the call light nearby if safe, stay within view, call the nurse, and report the sudden change, color, attempted climbing, and any pain, feverish feeling, urinary complaints, or fall history you observed.

Trap: “Dementia residents are always confused, so sudden confusion is normal.” Sudden change is not normal. Delirium can signal infection, dehydration, medication reaction, pain, low oxygen, or another acute problem, and the CNA must report it.

Scenario: A resident says an aide slapped him during care, but the resident is confused and later tells a different version. Missouri DHSS reminds that anyone can report suspected abuse, neglect, or exploitation, and certain professionals are mandated reporters. Follow facility chain of command, protect the resident from immediate danger, document objective facts as directed, and use the Missouri Adult Abuse and Neglect Hotline at 1-800-392-0210 or 911 for emergencies. Do not investigate on your own, confront the accused aide, or dismiss the statement because of dementia.

High-yield behavior responses

• Repeated questions: answer patiently, then redirect to a cue, task, or routine.
• Wandering or exit-seeking: stay calm, walk with the resident if safe, redirect, and report elopement risk.
• Hallucinations: do not argue; acknowledge feelings and report distressing or new symptoms.
• Resistance to care: stop briefly, explain, offer choices, try later if safe, and report refusal.
• Aggression: give space, remove hazards, call for help, and report objective behavior and triggers.

The Missouri CNA exam is looking for a supervised caregiver, not an amateur detective or disciplinarian. The best answer usually keeps the resident safe, preserves dignity, uses calm redirection, and gives the nurse clear facts.