Chapter 60: Nursing Management: Alzheimer's Disease, Dementia, and Delirium

NCLEX review questions: Which nursing intervention is most appropriate when caring for patients with dementia? Avoid direct eye contact. Lovingly call the patient "honey" or "sweetie." Give simple directions, focusing on one thing at a time. Treat the patient according to his or her age-related behavior.

C) Give simple directions, focusing on one thing at a time. Rationale: When dealing with patients with dementia, tasks should be simplified, giving directions using gestures or pictures and focusing on one thing at a time. It is best to treat these patients as adults, with respect and dignity, even when their behavior is childlike. The nurse should use gentle touch and direct eye contact. Calling the patient "honey" or "sweetie" can be condescending and does not demonstrate respect.

Pre-test practice questions: Although he has been told that ginkgo biloba will probably have no effect, a 58-year-old man with early stage Alzheimer's disease insists on taking the herb because he believes it will slow the disease progression. Which statement, if made by the patient to the nurse, indicates understanding about the side effects of ginkgo? A) "Ginkgo may increase the risk of bruising." B) "Ginkgo may cause leg pain while walking." C) "It is not safe to suddenly stop taking ginkgo." D) "Ringing in the ears is a side effect of ginkgo."

A) "Ginkgo may increase the risk of bruising." Rationale: Ginkgo biloba may increase the risk for bruising and bleeding. There are no indications that sudden withdrawal of ginkgo biloba is unsafe. Ginkgo biloba is possibly effective for treating intermittent claudication (leg pain while walking). There is insufficient evidence to indicate that ginkgo biloba is effective in treatment of tinnitus (ringing in the ears).

NCLEX review questions: Which statement by the wife of a patient with Alzheimer's disease (AD) demonstrates an accurate understanding of her husband's medication regimen? A) "I'm really hoping his medications will slow down his mental losses." B) "We're both holding out hope that this medication will cure his disease." C) "I know that this won't cure him, but we learned that it might prevent a bodily decline while he declines mentally." D) "I learned that if we are vigilant about his medication schedule, he may not experience the physical effects of his disease."

A) "I'm really hoping his medications will slow down his mental losses." Rationale: There is presently no cure for Alzheimer's disease, and drug therapy aims at improving or controlling decline in cognition. Medications do not directly address the physical manifestations of AD.

NCLEX review questions: For which patient should the nurse prioritize an assessment for depression? A) A patient in the early stages of Alzheimer's disease B) A patient who is in the final stages of Alzheimer's disease C) A patient experiencing delirium secondary to dehydration D) A patient who has become delirious following an atypical drug response

A) A patient in the early stages of Alzheimer's disease Rationale: Patients in the early stages of Alzheimer's disease are particularly susceptible to depression, since the patient is acutely aware of his or her cognitive changes and the expected disease trajectory. Delirium is typically a shorter-term health problem that does not typically pose a heightened risk of depression.

NCLEX review questions: The nurse who has administered a dose of risperidone (Risperdal) to a patient with delirium should assess for what intended effect of the medication? A) Lying quietly in bed B) Alleviation of depression C) Reduction in blood pressure D) Disappearance of confusion

A) Lying quietly in bed Rationale: Risperidone is an antipsychotic drug that reduces agitation and produces a restful state in patients with delirium. However, it should be used with caution. Antidepressant medications treat depression, and antihypertensive medications treat hypertension. However, there are no medications that will cause confusion to disappear in a patient with delirium.

Pre-test practice questions: A 78-year-old woman is in the intensive care unit after emergency abdominal surgery. The nurse notes that the patient is disoriented and confused, has incoherent speech, and is restless and agitated. Which action by the nurse is most appropriate? A) Reorient the patient. B) Notify the physician. C) Document the findings. D) Administer lorazepam (Ativan).

A) Reorient the patient. Rationale: The patient is exhibiting clinical manifestations of delirium. Care of the patient with delirium is focused on eliminating precipitating factors and protecting the patient from harm. Give priority to creating a calm and safe environment. The nurse should stay at the bedside and provide reassurance and reorienting information as to place, time, and procedures. The nurse should reduce environmental stimuli, including noise and light levels. Avoid the use of chemical and physical restraints if possible.

NCLEX review questions: The patient is having some increased memory and language problems. What diagnostic tests will be done before this patient is diagnosed with Alzheimer's disease (select all that apply)? A) Urinalysis B) MRI of the head C) Liver function tests D) Neuropsychologic testing E) Blood urea nitrogen and serum creatinine

A) Urinalysis B) MRI of the head C) Liver function tests D) Neuropsychologic testing E) Blood urea nitrogen and serum creatinine Rationale: Because there is no definitive diagnostic test for Alzheimer's disease, and many conditions can cause manifestations of dementia, testing must be done to eliminate any other causes of cognitive impairment. These include urinalysis to eliminate a urinary tract infection, an MRI to eliminate brain tumors, liver function tests to eliminate encephalopathy, BUN and serum creatinine to rule out renal dysfunction, and neuropsychologic testing to assess cognitive function.

NCLEX review questions: A 59-year-old female patient, who has frontotemporal lobar degeneration, has difficulty with verbal expression. One day she walks out of the house and goes to the gas station to get a soda but does not understand that she needs to pay for it. What is the best thing the nurse can suggest to this patient's husband to keep the patient safe during the day while the husband is at work? A) Assisted living B) Adult day care C) Advance directives D) Monitor for behavioral changes

B) Adult day care Rationale: To keep this patient safe during the day while the husband is at work, an adult day care facility would be the best choice. This patient would not need assisted living. Advance directives are important but are not related to her safety. Monitoring for behavioral changes will not keep her safe during the day.

NCLEX review questions: When providing community health care teaching regarding the early warning signs of Alzheimer's disease, which signs should the nurse advise family members to report (select all that apply)? A) Misplacing car keys B) Losing sense of time C) Difficulty performing familiar tasks D) Problems with performing basic calculations E) Becoming lost in a usually familiar environment

B) Losing sense of time C) Difficulty performing familiar tasks D) Problems with performing basic calculations E) Becoming lost in a usually familiar environment Rationale: Difficulty performing familiar tasks, problems with performing basic calculations, losing sense of time, and becoming lost in a usually familiar environment are all part of the early warning signs of Alzheimer's disease. Misplacing car keys is a normal frustrating event for many people.

Pre-test practice questions: The nurse in the long-term care facility cares for a 70-year-old man with severe (late-stage) dementia who is undernourished and has problems chewing and swallowing. What should the nurse include in the plan of care for this patient? A) Turn on the television to provide a distraction during meals. B) Provide thickened fluids and moist foods in bite-size pieces. C) Limit fluid intake during scheduled meals to prevent aspiration. D) Allow the patient to select favorite foods from the menu choices.

B) Provide thickened fluids and moist foods in bite-size pieces. Rationale: If patients with dementia have problems chewing or swallowing, pureed foods, thickened liquids, and nutritional supplements should be provided. Foods that are easy to swallow are moist and should be in bite-size pieces. Distractions at mealtimes, including the television, should be avoided. Fluids should not be limited but offered frequently; fluids should be thickened. Patients with severe (late-stage) dementia have difficulty understanding words and would not have the cognitive ability to select menu choices.

NCLEX review questions: The patient has been diagnosed with the mild cognitive impairment stage of Alzheimer's disease. What nursing interventions should the nurse expect to use with this patient? A) Treat disruptive behavior with antipsychotic drugs. B) Use a calendar and family pictures as memory aids. C) Use a writing board to communicate with the patient. D) Use a wander guard mechanism to keep the patient in the area.

B) Use a calendar and family pictures as memory aids. Rationale: The patient with mild cognitive impairment will have problems with memory, language, or another essential cognitive function that is severe enough to be noticeable to others but does not interfere with activities of daily living. A calendar and family pictures for memory aids will help this patient. This patient should not yet have disruptive behavior or get lost easily. Using a writing board will not help this patient with communication.

NCLEX review questions: Benzodiazepines are indicated in the treatment of cases of delirium that have which cause? A) Polypharmacy B) Cerebral hypoxia C) Alcohol withdrawal D) Electrolyte imbalances

C) Alcohol withdrawal Rationale: Benzodiazepines can be used to treat delirium associated with sedative and alcohol withdrawal. However, these drugs may worsen delirium caused by other factors and must be used cautiously. Polypharmacy, cerebral hypoxia, and electrolyte imbalances are not treated with benzodiazepines.

Pre-test practice questions: Unlicensed assistive personnel (UAP) working for a home care agency report a change in the alertness and language of an 82-year-old female patient. The home care nurse plans a visit to evaluate the patient's cognitive function. Which assessment would be most appropriate? A) Glasgow Coma Scale (GCS) B) Confusion Assessment Method (CAM) C) Mini-Mental State Examination (MMSE) D) National Institutes of Health Stroke Scale (NIHSS)

C) Mini-Mental State Examination (MMSE) Rationale: The MMSE is a commonly used tool to assess cognitive function. Cognitive testing is focused on evaluating memory, ability to calculate, language, visual-spatial skills, and degree of alertness. The CAM is used to assess for delirium. The GCS is used to assess the degree of impaired consciousness. The NIHSS is a neurologic examination stroke scale used to evaluate the effect of acute cerebral infarction on the levels of consciousness, language, neglect, visual field loss, extraocular movement, motor strength, ataxia, dysarthria, and sensory loss.

Pre-test practice questions: The home care nurse is visiting patients in the community. Which patient is exhibiting an early warning sign of Alzheimer's disease? A) A 65-year-old male does not recognize his family members and close friends. B) A 59-year-old female misplaces her purse and jokes about having memory loss. C) A 79-year-old male is incontinent and not able to perform hygiene independently. D) A 72-year-old female is unable to locate the address where she has lived for 10 years.

D) A 72-year-old female is unable to locate the address where she has lived for 10 years. Rationale: An early warning sign of Alzheimer's disease is disorientation to time and place such as geographic disorientation. Occasionally misplacing items and joking about memory loss are examples of normal forgetfulness. Impaired ability to recognize family and close friends is a clinical manifestation of middle or moderate dementia (or Alzheimer's disease). Incontinence and inability to perform self-care activities are clinical manifestations of severe or late dementia (or Alzheimer's disease).

NCLEX review questions: Which patient may face the greatest risk of developing delirium? A) A patient with fibromyalgia whose chronic pain has recently worsened B) A patient with a fracture who has spent the night in the emergency department C) An older patient whose recent computed tomography (CT) shows brain atrophy D) An older patient who takes multiple medications to treat various health problems

D) An older patient who takes multiple medications to treat various health problems Rationale: Polypharmacy is implicated in many cases of delirium, and this phenomenon is especially common among older adults. Brain atrophy, if associated with cognitive changes, is indicative of dementia. Alterations in sleep and environment, as well as pain, may cause delirium, but this is less of a risk than in an older adult who takes multiple medications.

Bridge to NCLEX questions: A major goal of treatment for the patient with AD is to a. maintain patient safety. b. maintain or increase body weight. c. return to a higher level of self-care. d. enhance functional ability over time.

a. maintain patient safety. Rationale: The overall management goals are that the patient with AD will (1) maintain functional ability for as long as possible, (2) be maintained in a safe environment with a minimum of injuries, (3) have personal care needs met, and (4) have dignity maintained. The nurse should place emphasis on patient safety while planning and providing nursing care.

Bridge to NCLEX questions: Which statement(s) accurately describe(s) mild cognitive impairment (select all that apply)? a. Always progresses to AD b. Caused by variety of factors and may progress to AD c. Should be aggressively treated with acetylcholinesterase drugs d. Caused by vascular infarcts that, if treated, will delay progression to AD e. Patient is usually not aware that there is a problem with his or her memory

b. Caused by variety of factors and may progress to AD Rationale: Although some individuals with mild cognitive impairment (MCI) revert to normal cognitive function or do not go on to develop Alzheimer's disease (AD), those with MCI are at high risk for AD. No drugs have been approved for the treatment of MCI. A person with MCI is often aware of a significant change in memory.

Bridge to NCLEX questions: Creutzfeldt-Jakob disease is characterized by a. remissions and exacerbations over many years. b. memory impairment, muscle jerks, and blindness. c. parkinsonian symptoms, including muscle rigidity and tremors at rest. d. increased intracranial pressure secondary to decreased CSF drainage.

b. memory impairment, muscle jerks, and blindness. Rationale: Creutzfeldt-Jakob disease (CJD) is a fatal brain disorder caused by a prion protein. The earliest symptom of the disease may be memory impairment and behavioral changes. The disease progresses rapidly, with mental deterioration, involuntary movements (i.e., muscle jerks), weakness in the limbs, blindness, and eventually coma

Bridge to NCLEX questions: The early stage of AD is characterized by a. no noticeable change in behavior. b. memory problems and mild confusion. c. increased time spent sleeping or in bed. d. incontinence, agitation, and wandering behavior.

b. memory problems and mild confusion. Rationale: An initial sign of AD is a subtle deterioration in memory.

Bridge to NCLEX questions: Vascular dementia is associated with a. transient ischemic attacks. b. bacterial or viral infection of neuronal tissue. c. cognitive changes secondary to cerebral ischemia. d. abrupt changes in cognitive function that are irreversible.

c. cognitive changes secondary to cerebral ischemia. Rationale: Vascular dementia is the loss of cognitive function that results from ischemic, ischemic-hypoxic, or hemorrhagic brain lesions caused by cardiovascular disease. In this type of dementia, narrowing and blocking of arteries that supply the brain causes a decrease in blood supply.

Bridge to NCLEX questions: Which patient is most at risk for developing delirium? a. A 50-year-old woman with cholecystitis b. A 19-year-old man with a fractured femur c. A 42-year-old woman having an elective hysterectomy d. A 78-year-old man admitted to the medical unit with complications related to heart failure

d. A 78-year-old man admitted to the medical unit with complications related to heart failure Rationale: Risk factors that can precipitate delirium include age of 65 years or older, male gender, and severe acute illness (e.g., heart failure). The 78-year-old man has the most risk factors for delirium

Bridge to NCLEX questions: The clinical diagnosis of dementia is based on a. CT or MRS. b. brain biopsy. c. electroencephalogram. d. patient history and cognitive assessment.

d. patient history and cognitive assessment. Rationale: The diagnosis of dementia depends on determining the cause. A thorough physical examination is performed to rule out other potential medical conditions. Cognitive testing (e.g., Mini-Mental State Examination) is focused on evaluating memory, ability to calculate, language, visual-spatial skills, and degree of alertness. Diagnosis of dementia related to vascular causes is based on the presence of cognitive loss, the presence of vascular brain lesions demonstrated by neuroimaging techniques, and the exclusion of other causes of dementia. Structural neuroimaging with computed tomography (CT) or magnetic resonance imaging (MRI) is used in the evaluation of patients with dementia. A psychologic evaluation is also indicated to determine the presence of depression.

Bridge to NCLEX questions: Dementia is defined as a a. syndrome that results only in memory loss. b. disease associated with abrupt changes in behavior. c. disease that is always due to reduced blood flow to the brain. d. syndrome characterized by cognitive dysfunction and loss of memory.

d. syndrome characterized by cognitive dysfunction and loss of memory. Rationale: Dementia is a syndrome characterized by dysfunction in or loss of memory, orientation, attention, language, judgment, and reasoning. Personality changes and behavioral problems such as agitation, delusions, and hallucinations may result.