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A patient has progressive memory deficit associated with dementia. Which nursing intervention would best help the individual function in the environment?
- A. Assist the patient to perform simple tasks by giving step-by-step directions.
- B. Reduce frustration by performing activities of daily living for the patient.
- C. Stimulate intellectual function by discussing new topics with the patient.
- D. Promote the use of the patient's sense of humor by telling jokes.
Correct Answer: A
Rationale: Patients with a cognitive impairment should perform all tasks of which they are capable. When simple directions are given in a systematic fashion, the patient is better able to process information and perform simple tasks. Stimulating intellectual functioning by discussing new topics is likely to prove frustrating for the patient. Patients with cognitive deficits may lose their sense of humor and find jokes meaningless.
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An older adult was stopped by police for driving through a red light. When asked for a driver's license, the adult hands the police officer a pair of sunglasses. What sign of dementia is evident?
- A. Aphasia
- B. Apraxia
- C. Agnosia
- D. Memory impairment
Correct Answer: C
Rationale: Agnosia refers to the loss of sensory ability to recognize objects. Aphasia refers to the loss of language ability. Apraxia refers to the loss of purposeful movement. No evidence of memory loss is revealed in this scenario.
When used for treatment of patients diagnosed with Alzheimer's disease, which medication would be expected to antagonize N-methyl-D-aspartate (NMDA) channels rather than cholinesterase?
- A. Donepezil
- B. Rivastigmine
- C. Memantine
- D. Galantamine
Correct Answer: C
Rationale: Memantine blocks the NMDA channels and is used in moderate-to-late stages of the disease. Donepezil, rivastigmine, and galantamine are all cholinesterase inhibitors. These drugs increase the availability of acetylcholine and are most often used to treat mild-to-moderate Alzheimer's disease.
Two patients in a residential care facility are diagnosed with dementia. One shouts to the other, 'Move along, you're blocking the road.' The other patient turns, shakes a fist, and shouts, 'I know what you're up to; you're trying to steal my car.' What is the nurse's best action?
- A. Administer one dose of an antipsychotic medication to both patients.
- B. Reinforce reality. Say to the patients, 'Walk along in the hall. This is not a traffic intersection.'
- C. Separate and distract the patients. Take one to the day room and the other to an activities area.
- D. Step between the two patients and say, 'Please quiet down. We do not allow violence here.'
Correct Answer: C
Rationale: Separating and distracting prevents escalation from verbal to physical acting out. Neither patient loses self-esteem during this intervention. Medication is probably not necessary. Stepping between two angry, threatening patients is an unsafe action, and trying to reinforce reality during an angry outburst will probably not be successful when the patients are cognitively impaired.
Which environmental adjustment should the nurse make for a patient experiencing delirium with perceptual alterations?
- A. Keep the patient by the nurse's desk while the patient is awake. Provide rest periods in a room with a television on.
- B. Light the room brightly, day and night. Awaken the patient hourly to assess mental status.
- C. Maintain soft lighting day and night. Keep a radio on low volume continuously.
- D. Provide a well-lit room without glare or shadows. Limit noise and stimulation.
Correct Answer: D
Rationale: A quiet, shadow-free room offers an environment that produces the fewest sensory perceptual distortions for a patient experiencing cognitive impairment associated with delirium. The other options have the potential to produce increased perceptual alterations.
A patient experiencing fluctuating levels of awareness, confusion, and disturbed orientation shouts, 'Bugs are crawling on my legs! Get them off!' Which problem is the patient experiencing?
- A. Aphasia
- B. Dystonia
- C. Tactile hallucinations
- D. Mnemonic disturbance
Correct Answer: C
Rationale: The patient feels bugs crawling on both legs, although no sensory stimulus is actually present. This description coincides with the definition of a hallucination, a false sensory perception. Tactile hallucinations may be part of the symptom constellation of delirium. Aphasia refers to a speech disorder. Dystonia refers to excessive muscle tonus. Mnemonic disturbance is associated with dementia rather than delirium.