Which is a cause of presbycusis in older people?
Changes in the lens
Hardening of the outer ear canal
Atrophic changes in the cochlea
Ototoxicity from medications
The Correct Answer is C
A. Changes in the lens
Related to vision changes (e.g., presbyopia), not hearing.
B. Hardening of the outer ear canal
Can cause conductive hearing loss, but presbycusis is sensorineural in nature.
C. Atrophic changes in the cochlea
Presbycusis is due to degeneration of the cochlea and auditory nerve, a normal age-related change.
D. Ototoxicity from medications
This causes pathologic hearing loss, not the gradual, age-related loss seen in presbycusis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Cardiovascular system
This system undergoes significant changes with aging, such as decreased cardiac output and arterial stiffness.
B. Respiratory system
Experiences notable changes like reduced lung elasticity and vital capacity.
C. Central nervous system
Although neuron loss and slowed synaptic transmission occur, the CNS shows only a slight functional decline unless compounded by disease.
D. Renal system
The kidneys show marked age-related decline, including decreased GFR and reduced ability to concentrate urine.
Correct Answer is D
Explanation
A. Medical diagnosis
Important, but does not reflect the individual's day-to-day abilities and care needs.
B. Activities of daily living (ADLs)
ADLs are part of a functional assessment but not comprehensive alone.
C. Community resources
Help support care but are not the primary basis for determining care needs.
D. Functional assessment
Evaluates the older adult's ability to perform ADLs and instrumental ADLs, guiding personalized care planning.
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