Which system shows only a slight decline with age?
Cardiovascular system
Respiratory system
Central nervous system
Renal system
The Correct Answer is C
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Occasional forgetfulness or inability to recall names or facts
This is a normal part of aging, often referred to as “senior moments,” and does not interfere significantly with daily functioning.
B. Difficulty in recalling recent events
May indicate early dementia or mild cognitive impairment, not considered normal.
C. Difficulty in recalling past events
Long-term memory is usually preserved in normal aging; trouble with past events is not typical.
D. Relying on another person to remember names or important events
Indicates greater memory difficulty, which may be a sign of cognitive decline rather than normal aging.
Correct Answer is C
Explanation
A. Dementia: Usually presents with memory loss and cognitive decline, not primarily with low energy, insomnia, or anorexia.
B. Sarcopenia: This is muscle mass loss, which may cause weakness but is not associated with insomnia or anorexia.
C. Depression: In older adults, depression often presents with physical complaints like low energy, sleep disturbances, and appetite loss, even when labs are normal.
D. Diabetes: May cause fatigue, but typically includes additional findings like polyuria, polydipsia, and abnormal labs.
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