Which is a cause of progressive slowing of responses and reflexes in older adults?
Decreased impulse conduction speed
Atherosclerosis and decreased cellular respiration
Inadequate tissue oxygenation
Loss of neurons in the brain
The Correct Answer is A
A. Decreased impulse conduction speed
Aging causes slower nerve conduction due to loss of myelin and reduced neurotransmitter activity, leading to slower reflexes and response times.
B. Atherosclerosis and decreased cellular respiration
These factors affect circulation and energy production but are not primary causes of slowed neurologic responses.
C. Inadequate tissue oxygenation
Can affect brain function acutely, but it's not the main cause of chronic, gradual slowing in the elderly.
D. Loss of neurons in the brain
While this occurs with aging, slowed reflexes are more specifically linked to nerve impulse transmission rather than neuron quantity alone.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Turn out the lights in client's room at night
This can increase confusion or fear in clients with dementia, especially at night (sundowning). A nightlight is preferred to reduce disorientation.
B. Restrain the client during the nighttime hours
Physical restraints can increase agitation, injury, and are not recommended unless absolutely necessary. This is not a first-line intervention.
C. Provide continuous orientation to the client
Frequent reorientation helps reduce confusion. Strategies like using clocks, calendars, and familiar items are beneficial in managing sundowning and wandering.
D. Place the client’s mattress on the floor
This may help prevent injury from falls but does not address the cause of agitation or wandering. It’s a safety measure, not a therapeutic one.
Correct Answer is B
Explanation
A. Orthostatic hypotension
This is a cardiovascular complaint, not a respiratory one. It refers to a drop in blood pressure upon standing.
B. Exertional dyspnea
As lung elasticity and chest wall compliance decrease with age, shortness of breath during activity is a common respiratory complaint in older adults.
C. Inability to breathe
This is a severe and acute symptom that requires emergency care, not a common age-related complaint.
D. Increased respirations
Tachypnea may indicate illness (e.g., infection, heart failure), but it is not a routine complaint in healthy aging.
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