Aging 2

How do delirium, dementia, and depression differ in their main patterns?

Delirium: acute, fluctuating disturbances in attention and awareness; dementia: gradual cognitive decline that interferes with daily functioning; depression: mood symptoms that impair function and may resemble cognitive decline.

Which cognitive changes can occur with normal aging, and which require further assessment?

Slower responses, difficulty learning complex information, minor recent-memory changes, and difficulty with multistep tasks can occur with aging; acute confusion or progressive loss of daily functioning requires assessment.

What most clearly distinguishes mild cognitive impairment from dementia?

Mild cognitive impairment causes greater cognitive difficulty than expected for age without interfering with daily activities; dementia interferes with daily functioning.

An older adult with dementia suddenly becomes inattentive and much more confused. What should the nurse suspect first?

Delirium superimposed on dementia; assess promptly for an underlying illness, medication effect, or other physiological cause.

What is delirium, and what causes it?

A neurocognitive disorder developing over hours to days with fluctuating disturbances in consciousness and cognition; it results from an underlying medical condition, substance, medication, or multiple causes.

Which finding is especially important for recognizing delirium?

Inattention: difficulty focusing, following instructions, or staying with an idea or task.

How do alertness, thinking, and perception commonly change with delirium?

Alertness fluctuates from reduced responsiveness to hypervigilance; thinking becomes disorganized; illusions, hallucinations, or misinterpretations may occur.

How do hyperactive, hypoactive, and mixed delirium differ?

Hyperactive: increased activity and potentially harmful behavior; hypoactive: little overt psychomotor activity; mixed: features of both.

A hospitalized older adult becomes unusually quiet, withdrawn, and less responsive. Why is this concerning?

Hypoactive delirium may be overlooked because the patient is not disruptive; it is associated with increased mortality and complications.

Which major risk factors for delirium should the nurse recognize?

Dementia, severe illness, urinary catheterization, low albumin, prolonged hospitalization, and metabolic acidosis.

Which additional factors may increase delirium risk?

Sleep deprivation, elevated BUN/creatinine ratio, polypharmacy, physical restraints, anemia, advanced age, and underlying physical illness.

Why is an older adult with a hip fracture and early disorientation at high risk for delirium?

Early cognitive impairment, underlying illness, and advanced age are strong predictors of delirium in hip-surgery patients.

Why should new delirium receive prompt attention?

It can signal worsening underlying pathology; early recognition and treatment of the cause may reduce serious complications.

What complications are associated with delirium?

Increased mortality, longer hospitalization, long-term care placement, depression, functional and cognitive decline, and other geriatric complications.

What additional outcomes are associated with delirium in ICU patients?

Longer mechanical ventilation, increased ICU and hospital stays, and higher mortality and complication rates.

Which four features does the Confusion Assessment Method assess?

Acute onset and fluctuating course, inattention, disorganized thinking, and altered level of consciousness.

Which delirium assessment tool is designed for critically ill ICU patients?

CAM-ICU.

How does the brief CAM assess attention?

The patient names the months backward from December to July; more than one error indicates inattention.

What does the Two-Item Ultra-Brief Delirium Screen ask, and what follows an abnormal result?

Name all months backward and identify the day of the week; failure on either item requires follow-up with another tool such as CAM.

Which delirium screening tool can be used without patient participation?

Nu-DESC; it observes disorientation, inappropriate behavior or communication, illusions or hallucinations, and psychomotor slowing.

Does a positive delirium screen establish the final diagnosis?

No; screening identifies concern, while full evaluation using diagnostic criteria establishes the diagnosis.

Which nonpharmacological strategies are emphasized for delirium prevention and management?

Mobility enhancement, cognitive stimulation, and sleep enhancement as part of multicomponent care.

How should the nurse monitor a hospitalized older adult at risk for delirium?

Use routine standardized screening and ongoing observation for early changes in cognition, attention, and behavior.

What is dementia?

A clinical syndrome of cognitive decline associated with gradual functional loss and changes in mood and behavior.

What are the main treatment goals for a patient with dementia?

Identify reversible contributors, manage comorbidities, diagnose and manage the neurocognitive disorder early, maintain function, and support caregivers.

Which findings are characteristic of Alzheimer disease?

Progressive memory loss, language deterioration, declining ADL ability, personality and behavior changes, and impaired judgment.

Which brain changes are associated with Alzheimer disease in the lectures?

Amyloid-beta accumulation in plaques and neurofibrillary tangles.

A patient develops cognitive decline after a cerebrovascular event, with focal weakness and gait changes. Which dementia is suggested?

Vascular dementia.

Which findings help distinguish vascular dementia from other dementias?

Association with cerebrovascular disease, focal neurological deficits, gait disturbances, personality or mood changes, and impaired executive function.

A patient has cognitive changes, prominent hallucinations, sleep problems, rigidity, and an unsteady gait. Which dementia is suggested?

Dementia with Lewy bodies.

What causes dementia with Lewy bodies?

Pathological alpha-synuclein aggregates called Lewy bodies form in neurons.

How does Parkinson disease dementia differ from dementia with Lewy bodies?

In Parkinson disease dementia, motor symptoms precede cognitive impairment; dementia with Lewy bodies begins with cognitive fluctuations.

Which dementia commonly presents with early behavioral or language changes?

Frontotemporal dementia.

Which factors are associated with a higher likelihood of mild cognitive impairment?

Advanced age, lower education, vascular risks such as hypertension and diabetes, cardiovascular disease, depression, anxiety, and apathy.

What are the two major assessment priorities when dementia is suspected?

Identify cognitive impairment early and identify potentially reversible primary or contributing causes.

How should the nurse obtain a history from a patient with possible dementia?

Interview the patient first, then clarify and validate information with family or others familiar with the patient.

Why can beginning a dementia assessment with questions about daily functioning be helpful?

Discussing ADLs and IADLs may feel less threatening than direct cognitive testing and helps establish the chronology of decline.

What should a mental status evaluation assess beyond memory?

Consciousness, appearance and behavior, orientation, attention, judgment, insight, executive function, visuospatial ability, language, thought content, mood, and affect.

Which tools assess functional ability in dementia?

FAQ uses informant ratings of activities; FAST tracks functional stages; ADCS-ADL assesses and monitors functioning, especially in moderate to severe Alzheimer disease.

Which tests are recommended in the uploaded dementia lecture to investigate contributing causes?

Thyroid function and vitamin B12 testing, along with MRI or noncontrast CT in the initial workup.

Why might a patient with suspected dementia need referral to a memory clinic or neuropsychologist?

To identify subtle impairments, distinguish mild cognitive impairment from dementia, clarify the diagnosis, and guide patient and caregiver support.

What are behavioral and psychological symptoms of dementia?

Symptoms such as agitation, aggression, apathy, anxiety, irritability, distressing perceptions, and changes in thought content or mood.

A patient with dementia suddenly resists bathing and strikes at staff. What should the nurse assess before treating this as a behavior problem?

New illness, pain, unmet needs, environmental triggers, and the circumstances surrounding care.

What does the Neuropsychiatric Inventory assess?

Frequency and severity of psychiatric and behavioral symptoms in dementia, along with caregiver stress.

How does the progressively lowered stress threshold framework guide dementia care?

Adapt routines, stimulation, and assistance to the patient’s abilities to reduce stress and preserve safe function.

Which interventions apply the progressively lowered stress threshold framework?

Familiar routines, limited choices, rest periods, simple respectful communication, early recognition of anxiety, attention to hunger or pain, environmental modification, and caregiver support.

A patient with dementia begins pacing and grimacing during a noisy activity. What is the best response?

Recognize early stress, reduce stimulation, and assess physical needs before behavior escalates.

What does it mean to “listen” to the behavior of a patient with dementia?

Interpret repetition, rummaging, or other behaviors as possible attempts to manage stress or communicate unmet needs.

What are the steps of the DICE approach to dementia behaviors?

Describe the behavior and context; Investigate contributing factors; Create an individualized plan; Evaluate implementation and results.

What should the nurse investigate during the “I” step of DICE?

Health problems, dementia symptoms, medications, sleep, environmental influences, social factors, and caregiver-related factors.

Which environmental approaches support a person with dementia?

Modest stimulation, removal of hazards, orientation cues and sensory aids, consistent caregivers, and a familiar, homelike setting.

Why should both excessive stimulation and insufficient stimulation be avoided in dementia care?

Excess stimulation may worsen agitation and confusion; insufficient stimulation may cause withdrawal and sensory deprivation.

How do reality orientation and validation therapy differ?

Reality orientation provides factual cues and may help early dementia; validation therapy accepts the person’s experience and acknowledges their feelings.

A patient with dementia repeatedly asks for a deceased parent. Which communication approach follows validation therapy?

Acknowledge the feeling, such as “You miss your mother; tell me about her,” rather than repeatedly correcting the patient.

Which communication techniques are emphasized for patients with dementia?

Respectful conversation, simple understandable language, attention to nonverbal communication, and approaches matched to the person’s abilities.

How can graded assistance help a patient with dementia?

Provide the amount of help needed while encouraging remaining self-care abilities and independence.

Which daily-care measures help preserve function in dementia?

Adequate nutrition and hydration, exercise, self-care, rest and sleep, bowel and bladder routines, dental care, and management of comorbidities.

Which activities may benefit patients with dementia?

Individualized music, singing, storytelling, poetry, dance, meaningful social engagement, and appropriate occupational therapy.

When should nonpharmacological interventions be used for dementia-related behavioral symptoms?

Before drug therapy, after assessing causes and unmet needs.

Why should medications for dementia-related behaviors be used cautiously?

They may increase falls, cognitive worsening, functional decline, and other complications; use the lowest necessary dose for the shortest time with ongoing evaluation.

Which acetylcholinesterase inhibitors are listed for Alzheimer disease?

Donepezil, rivastigmine, and galantamine.

Which adverse effects should the nurse monitor with acetylcholinesterase inhibitors?

Nausea, anorexia, and diarrhea.

What is memantine used for, and which adverse effects are listed?

Moderate to severe dementia; possible diarrhea, insomnia, and agitation.

When should advance care planning begin for a patient with progressive dementia?

While the patient can still participate in decisions, so future care reflects their preferences and reduces caregiver uncertainty.

What are the main priorities in end-of-life dementia care?

Physical and emotional comfort, family education and inclusion, and bereavement support.

What does the dementia lecture say about aggressive treatments in end-stage dementia?

It reports no substantial evidence supporting their effectiveness as a general approach; decisions should follow advance planning and comfort goals.

Why should cognition be assessed rather than assuming impairment is normal aging?

Early recognition can guide treatment of reversible conditions, support safe decisions, and help prevent functional decline.

What is the difference between cognitive screening, diagnostic evaluation, and monitoring?

Screening identifies possible impairment; diagnostic evaluation determines its cause; monitoring tracks changes and responses to treatment.

How is the MMSE scored, and what result commonly suggests impairment in the lecture?

Scores range from 0 to 30; a score below 24 often indicates impaired cognition.

Which factors may bias MMSE performance?

Education, language, sociocultural differences, verbal ability, and age.

What MoCA score is generally considered normal in the lecture?

A score of 26 or higher out of 30; MoCA is especially useful for detecting mild cognitive impairment.

What does the Mini-Cog include?

Three-item recall and a clock-drawing task.

When might the Nurses’ Observation Scale for Cognitive Abilities be useful?

When formal testing is not possible; cognition is assessed during routine activities such as bathing, feeding, and transferring.

How should the environment be prepared for cognitive testing?

Provide comfortable temperature, adequate nonglaring light, minimal distractions, and positioning that supports the patient’s sensory abilities.

When should formal cognitive testing be postponed to improve accuracy?

Immediately after awakening, around meals or procedures, or during unstable or interfering symptoms such as fever or nausea; wait at least 30 minutes after awakening.

Why should family information accompany formal cognitive testing?

It helps establish baseline abilities, duration and progression of changes, and functioning outside the testing situation.

What should follow an abnormal cognitive screening result?

Further diagnostic assessment and appropriate referral; document the testing context and incorporate findings into care.

Is depression an expected part of aging, illness, or relocation?

No; clinically significant depression is treatable pathology even when it follows a stressful life event.

How do major and minor depression differ in the lectures?

Major depression requires five of nine diagnostic symptoms; minor depression involves depressed mood plus one to three other symptoms, causing distress or impairment for at least two weeks.

Which symptoms are included in the lecture’s description of major depression?

Depressed mood, loss of pleasure, worthlessness, suicidal thoughts, fatigue, appetite and sleep changes, and psychomotor changes.

How may late-life depression present differently from depression in younger adults?

Older adults may report agitation, physical complaints, gastrointestinal symptoms, or health concerns more readily than sadness.

An older adult repeatedly reports fatigue and poor sleep. Why should the nurse assess both medical illness and depression?

These symptoms overlap; medical explanations do not eliminate the possibility of depression.

Which biological and functional factors increase late-life depression risk?

Medical comorbidities, cognitive impairment, functional disability, and new functional loss such as after a stroke.

Which psychosocial factors increase late-life depression risk?

Bereavement, loneliness, little social support, caregiving, trauma, low income, low self-efficacy, and accumulated stressful events or daily struggles.

What is the relationship between depression and cognitive impairment?

The relationship is bidirectional; depression can resemble dementia, and a history of depression is associated with greater dementia risk.

Why can depression be missed in older adults?

Stigma, assumptions that sadness is normal aging, atypical physical symptoms, and overlap with anxiety, illness, or dementia.

Which outcomes can result from untreated late-life depression?

Functional and cognitive decline, lower pain tolerance, increased healthcare use, treatment or food refusal, and suicide risk.

How should depression be assessed in an older adult?

Use routine standardized screening plus an individualized interview, symptom history, and information from family or caregivers when appropriate.

What GDS-SF result is a positive depression screen in the lecture?

A score of 5 or more on the 15-item yes/no tool.

What does the PHQ-2 assess?

Depressed mood and loss of pleasure; it is intended for cognitively intact older adults in the uploaded lecture.

Which tool is specifically designed to assess depression in a person with dementia?

The Cornell Scale for Depression in Dementia; a score of 12 or more suggests depression in the lecture.

An older adult says, “Life is not worth living anymore.” What is the nursing priority?

Ask directly about suicidal thoughts or attempts, assess safety promptly, and obtain urgent psychiatric evaluation with appropriate observation.

What should happen when a patient has high suicide risk?

Implement safety precautions and continuous observation or surveillance while obtaining emergency psychiatric evaluation; transfer may be needed if the setting cannot provide safe monitoring.

What should the nurse include in an individualized depression interview?

Symptom type, duration and frequency, change from baseline, suicidal thinking, psychotic symptoms, losses, coping, substance use, health changes, relationships, psychiatric history, and current stressors.

Which medical or medication-related contributors should be explored when depression is identified?

Review medical history, medications, examination findings, thyroid function, chemistry, CBC, and additional tests such as B12 or folate as indicated.

Will treating a medical cause always resolve associated depression?

No; depression may still require antidepressant treatment or psychotherapy.

Which findings indicate a need for intensive psychiatric treatment?

Severe depression, suicidal thoughts, or psychotic symptoms.

What treatment approaches are supported for late-life depression?

Pharmacotherapy, psychotherapy, lifestyle interventions, collaborative care, and selected somatic therapies such as ECT.

Which antidepressant class is first-line for late-life depression in the lecture?

SSRIs, based on relatively favorable adverse-effect profiles and cost.

How long may a full antidepressant response take in older adults?

Eight to sixteen weeks.