What age-related change regarding pneumonia should a nurse discuss with the family of an elderly client?

The most relevant age-related change that a nurse should discuss with the family of an elderly client concerning pneumonia is the increased susceptibility to infections. As people age, their immune system often becomes less effective, leading to a higher risk for various infections, including pneumonia.

Older adults typically have a decline in various immune responses, including the capacity to produce antibodies and a slower response to vaccinations. Additionally, age can impact the structural integrity of the lungs and their ability to clear secretions, further predisposing elderly individuals to respiratory infections such as pneumonia.

In contrast, other options like increased lung capacity or increased elasticity of the thoracic cage would not accurately represent age-related changes in the elderly. Instead, there is generally a decrease in lung capacity and elasticity, which can contribute to respiratory issues. This makes understanding the susceptibility to infections particularly crucial for the elderly population, as early recognition and intervention can significantly impact their health outcomes.