Cognitive impairment is a decline in memory, attention, language, reasoning, or judgment that is greater than expected for a person’s age and that can interfere with daily life. It ranges from mild cognitive impairment to dementia. The nursing diagnoses used most often are Chronic Confusion, Risk for Adult Falls, Impaired Verbal Communication, and Impaired Social Interaction. Nursing care centers on safety, a calm and predictable routine, clear communication, catching delirium early, keeping the person as independent and connected as possible, and supporting the family caregiver.
At a glance
- What it is
- A lasting decline in one or more thinking skills. In mild cognitive impairment the person still manages daily life on their own. In dementia (major neurocognitive disorder) the decline is severe enough to need help with everyday tasks.
- Common causes
- Alzheimer’s disease (the most common cause of dementia), vascular disease and stroke, Lewy body disease, frontotemporal dementia, Parkinson’s disease, and traumatic brain injury. Treatable contributors include depression, thyroid disease, vitamin B12 deficiency, medication side effects, alcohol use, and untreated hearing or vision loss.
- Key signs
- Forgetting recent events, repeating questions, getting lost in familiar places, trouble finding words, poor judgment, difficulty with bills, medicines, or cooking, personality or mood changes, and withdrawal from usual activities.
- Nursing focus
- Safety and fall prevention, a consistent routine, simple communication, screening for delirium every shift, medication review, keeping glasses and hearing aids in use, social engagement, and caregiver teaching and support.
- Act now
- A sudden change from the person’s usual thinking, such as new drowsiness, agitation, or inability to pay attention, may be delirium or a stroke. Check airway, breathing, vital signs, oxygen saturation, and glucose, and report it to the provider right away. New facial droop, arm weakness, or speech change needs a stroke alert.
How cognitive impairment develops
Thinking depends on healthy brain cells and the connections between them. In Alzheimer’s disease, abnormal proteins (amyloid plaques and tau tangles) build up and brain cells die, starting in the memory areas and spreading over years. In vascular cognitive impairment, strokes or narrowed small vessels cut blood flow to brain tissue, so decline can happen in steps. Lewy body dementia brings fluctuating alertness, visual hallucinations, and movement problems, and frontotemporal dementia often changes behavior and language before memory.
Many people have more than one cause. Hearing loss, poor sleep, depression, and medicines with anticholinergic or sedating effects can make thinking worse at any stage. Finding and treating these contributors can improve function even when the underlying disease cannot be reversed.
A person with cognitive impairment has less brain reserve, so illness, surgery, pain, infection, dehydration, or a move to the hospital can trigger delirium. Delirium on top of dementia is common, easy to miss, and linked to falls, longer stays, and faster decline.
Mild cognitive impairment, dementia, or delirium?
| Condition | What the nurse sees |
|---|---|
| Mild cognitive impairment | Memory or thinking is worse than expected for age and noticeable to the person or family, but they still handle daily activities on their own, sometimes with more effort or reminders. |
| Dementia (major neurocognitive disorder) | Gradual, usually progressive decline over months to years that interferes with independence in daily activities. Alertness is usually normal until late stages. |
| Delirium | Sudden onset over hours to days, fluctuating course, trouble paying attention, and altered level of alertness. Usually has a medical cause and is often reversible. A medical emergency until the cause is found. |
| Depression | Slowed thinking, poor concentration, and “I don’t know” answers, with sad mood or loss of interest. Thinking often improves when the depression is treated. |
Nursing assessment
Subjective data
- The person’s and the family’s description of changes: what started first, how fast, and whether the change was gradual or sudden
- Usual (baseline) level of thinking and function, from someone who knows the person well
- Ability to manage bathing, dressing, eating, toileting, medicines, money, cooking, and driving
- Getting lost, leaving the stove on, or wandering, and any falls or near falls
- Sleep pattern, night-time waking, and need to urinate at night
- Mood, anxiety, loss of interest, hallucinations, and changes in personality or behavior
- All medicines, including over-the-counter sleep aids and allergy pills, alcohol use, and recent medicine changes
- Hearing, vision, and use of hearing aids and glasses
- Who provides care at home, how they are coping, and what help they have
Objective data
- Level of alertness and attention; orientation to person, place, and time
- Delirium screening each shift with the tool your facility uses, such as the Confusion Assessment Method (CAM)
- A brief cognitive screen as ordered or per policy, such as the Mini-Cog, MoCA, or SLUMS. Results support, but do not make, a diagnosis
- Speech: word-finding pauses, following one-step and multistep directions
- Gait, balance, use of assistive devices, and fall-risk score with your facility’s tool
- Vital signs, including lying and standing blood pressure, oxygen saturation, and pain using a scale suited to cognitive impairment
- Hydration, nutrition, weight, skin, and bowel and bladder patterns
- Behaviors such as restlessness, pacing, exit-seeking, or resisting care, and what triggers them
- Labs and tests as ordered to look for treatable causes: complete blood count, metabolic panel, thyroid function, vitamin B12, and brain imaging
Nursing diagnoses used with cognitive impairment
- Chronic Confusion — lasting, progressive decline in memory, thinking, and judgment from dementia
- Risk for Adult Falls — poor judgment and safety awareness, unsteady gait, night-time toileting, and sedating medicines
- Impaired Verbal Communication — word-finding trouble and difficulty understanding complex speech
- Impaired Social Interaction — withdrawal from friends and activities because of memory and language loss
- Impaired Memory — memory loss with other thinking skills fairly well kept, as in mild cognitive impairment
- Risk for Acute Confusion — high risk of delirium during illness, surgery, or hospital stays
- Disturbed Thought Process — trouble with reasoning, planning, and judgment
- Decreased Self-Care Ability Syndrome — needing help with bathing, dressing, eating, or toileting
Worked care plans
Four plans in the same ADPIE shape. The scenario is an 82-year-old man with moderate dementia from Alzheimer’s disease, diagnosed 4 years ago, admitted for observation after a fall at home at 3 a.m. on his way to the bathroom. X-rays show no fracture; he has a small skin tear on his left forearm. He lives with his 79-year-old wife, who is his only caregiver. She says he is “at his usual” today: he knows his name but not the date or the hospital, repeats the same questions, and has trouble finding words. Delirium screening with the CAM is negative. Blood pressure is 134/78 lying and 126/74 standing, heart rate 76, respiratory rate 16, temperature 36.7°C (98.1°F), and oxygen saturation 96% on room air. Fingerstick glucose is 112 mg/dL. He gets up to urinate 2 to 3 times a night, walks with a wide, unsteady gait, and forgets his cane. He takes donepezil, and his wife has been giving him an over-the-counter diphenhydramine sleep aid every night. Recent thyroid and vitamin B12 tests were normal. His hearing aids are at home. His wife says he stopped going to his church men’s group last year and now sits alone most of the day.
1. Chronic Confusion
Problem-focusedSubjective: Wife: “He’s been getting more forgetful for about five years. He asks me what day it is over and over. Today he’s the same as he is at home.” Patient: “When can I go home? Is it time to go home?”
Objective: Oriented to person only. Asks the same question every few minutes. Follows one-step directions but not two-step directions. Alert, attention intact, CAM negative. Becomes restless in the late afternoon. Hearing aids not with him.
Chronic Confusion related to progressive neurodegeneration from Alzheimer’s disease, as evidenced by disorientation to place and time, repetitive questioning, inability to follow two-step directions, and a gradual decline in memory over several years.
- Patient stays calm and takes part in care with one-step cues during the stay
- Patient shows no new delirium on screening each shift
- Patient’s wife names three ways to reduce confusion at home before discharge
- Screen for delirium every shift with the facility’s tool, and report any sudden change in alertness or attention to the provider
- Ask his wife to bring his hearing aids and glasses, and make sure he wears them while awake
- Introduce yourself each time, face him, speak slowly and simply, and give one step at a time
- Keep a consistent routine and assign the same caregivers when possible
- Place a large clock, a calendar, and family photos where he can see them, and orient him gently in conversation rather than quizzing him
- Answer repeated questions patiently, respond to the feeling behind them, and redirect to a calm activity; do not argue or correct
- Keep lights on and curtains open during the day, limit naps, and keep the room quiet and dark at night to support sleep
- Ask the pharmacist and provider to review his medicines, including the over-the-counter diphenhydramine, which has strong anticholinergic effects that can worsen confusion in older adults
- Avoid physical restraints; find and treat causes of distress such as pain, hunger, a full bladder, or noise
With his hearing aids in and a steady routine, he followed one-step cues for bathing and meals and stayed calm, with brief late-afternoon restlessness eased by a walk with staff. Delirium screens stayed negative. The provider stopped the diphenhydramine. His wife described keeping a daily routine, using a large calendar, and answering repeated questions calmly. Goal met; continue the same approach at home.
2. Risk for Adult Falls
Risk diagnosis- Fall at home within the past day
- Impaired judgment and safety awareness; forgets to use the call light and cane
- Unsteady, wide-based gait
- Getting up 2 to 3 times a night to urinate
- Nightly sedating anticholinergic sleep aid
- Unfamiliar hospital room
No “as evidenced by” — the plan prevents a fall in the hospital and at home.
Risk for Adult Falls related to impaired judgment from dementia, unsteady gait, night-time urination, sedating medicine, and an unfamiliar environment.
- Patient has no falls during the hospital stay
- Patient walks to the bathroom with staff and his cane or walker
- Wife names home changes to prevent falls before discharge
- Score fall risk on admission and each shift with your facility’s tool, and start the fall-prevention measures it calls for
- Keep the bed low and locked, the call light, urinal, and walking aid within reach, and the path to the bathroom clear and lit
- Round at least hourly and offer toileting on a schedule, including before bed and during the night, because he may not remember to call
- Limit fluids in the evening only if the provider agrees, and give most fluids earlier in the day
- Use non-skid footwear, and a bed or chair alarm if your facility’s policy supports it
- Check lying and standing blood pressure as ordered, and have him sit on the edge of the bed before standing
- Request a physical therapy consult for gait, balance, and the right walking aid
- Avoid restraints and all four side rails up, which raise the risk of serious injury when a confused person climbs out
- Follow up on the medicine review to stop sedating and anticholinergic drugs when possible
He had no falls. With scheduled toileting he got up once a night with staff and used a walker that physical therapy fitted. His wife planned night lights, removing throw rugs, a bedside commode, and grab bars in the bathroom. Goal met; home safety referral placed.
Free download
NCLEX Readiness Diagnostic
Fifty questions with a written rationale on every option, scored by section so you can see which content area is weakest. Sent as a PDF.
3. Impaired Verbal Communication
Problem-focusedSubjective: Patient: “I need the… the thing, the… you know.” Wife: “He loses his words a lot now, and he gets upset when people talk fast.”
Objective: Long pauses to find words and substitutes general words (“the thing”). Follows short one-step requests but not long explanations. Frowns and turns away when several people talk at once. Hearing aids not in use.
Impaired Verbal Communication related to progressive changes in language areas of the brain and uncorrected hearing loss, as evidenced by word-finding pauses, use of nonspecific words, difficulty following complex speech, and frustration during conversation.
- Patient makes basic needs (pain, toileting, hunger, thirst) known using words, gestures, or a picture board
- Patient shows fewer signs of frustration during care
- Staff and wife use communication strategies consistently
- Make sure his hearing aids are in and working, and reduce background noise before talking
- Get his attention, face him at eye level, and use his name
- Use short, simple sentences and yes-or-no or two-choice questions (“Would you like coffee or juice?”)
- Give him time to answer; do not rush, interrupt, or finish his sentences unless he wants help
- Use gestures, pointing, and showing objects, and provide a simple picture board for common needs
- Watch nonverbal cues such as grimacing, rubbing, or restlessness, which may signal pain or a need he cannot name, and use a pain scale suited to cognitive impairment
- Speak to him with respect as an adult, and include him in conversations about his care
- Record what works in the care plan so every caregiver uses the same approach
With his hearing aids in and short choice questions, he pointed to the picture board for the bathroom and water and told staff “hurts” while rubbing his forearm. Frustration during care decreased. His wife practiced giving two choices and waiting for his answer. Goal met.
4. Impaired Social Interaction
Problem-focusedSubjective: Patient: “I don’t go anymore. I forget people’s names. It’s embarrassing.” Wife: “He used to love his men’s group. Now he sits by the window all day, and I’m worn out.”
Objective: Stopped attending church and his men’s group about a year ago. Spends most of the day alone. Brightens and smiles when shown photos of his old fishing trips. Wife appears tired and says she has no help.
Impaired Social Interaction related to memory and language loss and embarrassment about forgetting names, as evidenced by withdrawal from his usual groups, spending most of the day alone, and his statement that social situations are embarrassing.
- Patient takes part in one enjoyable, structured activity each day in the hospital
- Wife and patient agree on at least one regular social activity after discharge
- Wife is connected with caregiver support and respite resources before discharge
- Learn his history, interests, and routines from his wife, and use them in conversation and activities
- Offer short, failure-free activities he enjoys, such as looking at fishing photos, music from his younger years, or folding towels
- Use one-to-one or small-group contact in a quiet setting, which is easier than large, noisy groups
- Help him and his wife plan how to tell friends about his memory loss, and suggest name tags or a friend who can guide conversations
- Refer to social work for an adult day program, home care, and respite options
- Give his wife caregiver resources, such as the Alzheimer’s Association 24/7 Helpline and local support groups
- Watch for signs of depression in him and caregiver exhaustion in his wife, and report them to the provider
He joined a music session on the unit and talked about fishing with a volunteer each afternoon. He agreed to try an adult day program two days a week, and his wife plans to use those days for rest and a caregiver support group. Goal partly met; follow up at the clinic visit in 2 weeks.
Interventions and rationales
Client and family teaching
- Keep a daily routine for meals, medicines, activity, and bedtime, and post a simple schedule
- Use calendars, clocks, labeled drawers, and pill organizers, and have a family member set up and supervise medicines
- Make the home safer: night lights, no throw rugs, grab bars, stair rails, secured medicines, and stove and car safety plans
- Check with the provider or pharmacist before giving any over-the-counter sleep aid, allergy pill, or cold medicine
- Report a sudden change in thinking, new sleepiness, or new agitation the same day; it may be an infection or another illness
- Know the side effects of dementia medicines as prescribed, such as nausea, diarrhea, slow heart rate, and dizziness with donepezil
- Stay physically active, keep hearing aids and glasses in use, and keep up social activities that are enjoyable
- If the person may wander, use an ID bracelet, secure doors, and tell neighbors
- Plan ahead while the person can take part: health care proxy, advance directives, finances, and driving
- Caregivers: accept help, use respite and adult day programs, and look after your own health
NurseStudyPrep.com
You’ve read the care plan. Now answer one.
A communication item in the NCLEX format. On Prep, every option gets a written rationale — including the three that are wrong.
A client with moderate dementia from Alzheimer’s disease keeps asking, “Where is my wife? I need to go home and take care of her.” The client’s wife died three years ago. Which response by the nurse is best?
Why B. The client cannot retain the fact of his wife’s death, so stating it makes him relive the loss each time he asks. Acknowledging the feeling and inviting him to talk about her calms him and opens a path to redirect. Saying she will visit is untrue and leads to more distress when she does not come, and option D ignores his concern and may increase agitation. Prep also explains why each wrong option looks reasonable.
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Frequently asked questions
What is the nursing diagnosis for cognitive impairment?
For dementia, Chronic Confusion is the main nursing diagnosis. Impaired Memory fits when memory loss stands mostly alone, as in mild cognitive impairment. Risk for Adult Falls, Impaired Verbal Communication, Impaired Social Interaction, and Risk for Acute Confusion are also common.
What is the priority for a patient with cognitive impairment?
Safety comes first: preventing falls and injury and recognizing delirium or another acute change. Once the person is safe, the focus moves to communication, routine, independence, and support for the caregiver.
What is the difference between chronic confusion and acute confusion?
Chronic Confusion develops slowly and lasts, as in dementia, with alertness usually intact. Acute Confusion, as in delirium, starts suddenly, comes and goes, affects attention and alertness, and usually has a medical cause that needs to be found and treated.
Is mild cognitive impairment the same as dementia?
No. In mild cognitive impairment, thinking is worse than expected for age, but the person still handles daily life on their own. Some people with mild cognitive impairment go on to develop dementia, some stay stable, and some improve when a cause such as depression or a medicine is treated.
Should a confused patient be reoriented?
Gentle orientation cues such as clocks, calendars, and introducing yourself help. Repeatedly correcting or quizzing a person with dementia, especially about upsetting facts, usually causes distress. Acknowledge the feeling, then redirect.
Can cognitive impairment be prevented?
Not always, but risk can be lowered. The 2024 Lancet Commission estimated that close to half of dementia cases worldwide are linked to modifiable risk factors, including hearing loss, high blood pressure, diabetes, smoking, physical inactivity, high LDL cholesterol, untreated vision loss, depression, and social isolation.
References
- Herdman, T. H., Kamitsuru, S., & Lopes, C. T. (Eds.). NANDA International Nursing Diagnoses: Definitions and Classification, 2024–2026. Thieme.
- American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders (5th ed., text rev.; DSM-5-TR). 2022.
- Alzheimer’s Association. Alzheimer’s Disease Facts and Figures. Current edition. alz.org.
- 2023 American Geriatrics Society Beers Criteria Update Expert Panel. American Geriatrics Society 2023 updated AGS Beers Criteria for potentially inappropriate medication use in older adults. Journal of the American Geriatrics Society, 2023;71(7):2052–2081.
- Livingston, G., Huntley, J., Liu, K. Y., et al. Dementia prevention, intervention, and care: 2024 report of the Lancet standing Commission. The Lancet, 2024;404(10452):572–628.
- Inouye, S. K., van Dyck, C. H., Alessi, C. A., et al. Clarifying confusion: the confusion assessment method. Annals of Internal Medicine, 1990;113(12):941–948.
- US Preventive Services Task Force. Screening for cognitive impairment in older adults: recommendation statement. JAMA, 2020;323(8):757–763.
- Centers for Disease Control and Prevention. STEADI: Stopping Elderly Accidents, Deaths & Injuries. cdc.gov.
- Montine, T. J., Bukhari, S. A., & White, L. R. Cognitive impairment in older adults and therapeutic strategies. Pharmacological Reviews, 2021;73(1):152–162.
- Logsdon, R. G., McCurry, S. M., & Teri, L. Evidence-based interventions to improve quality of life for individuals with dementia. Alzheimer’s Care Today, 2007;8(4):309–318.
- Ackley, B. J., Ladwig, G. B., Makic, M. B. F., Martinez-Kratz, M. R., & Zanotti, M. Nursing Diagnosis Handbook: An Evidence-Based Guide to Planning Care (13th ed.). Elsevier, 2023.
Cognitive screening tools and their scoring, delirium screening tools, fall-risk tools and prevention measures, alarm and restraint policies, vital sign parameters, fluid plans, medicine choices and doses, and community resources vary by patient, by provider, and by facility. Follow the provider’s written orders and your own institution’s policies. This page supports study and does not replace course instruction or clinical judgment.
