Which assessment finding of older adult patients indicates expected respiratory function?

Question

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Diminished strength of the respiratory muscles results in reduced maximal inspiratory and expiratory force. With aging, alveoli become less elastic and more fibrous. With aging, the chest wall may become stiffer, possibly because of calcification at rib articulation points, resulting in decreased chest wall compliance. The anteroposterior diameter increases with aging due to kyphoscoliosis.

Which Assessment Finding of Older Adult Patients Indicates Expected Respiratory