Which of the following is a common sign observed in elderly patients with pneumonia?

• A. Decreased LOC
• B. Increased fever
• C. Productive cough
• D. Clear lung sounds

Answer: (A)

In elderly patients, pneumonia often presents atypically, with changes in mental status being a common clue. Delirium or decreased level of consciousness can occur because infection and resulting hypoxia, dehydration, electrolyte shifts, or medications can disrupt brain function in older adults. This makes decreased LOC a frequent and important sign to recognize, even when fever isn’t prominent.

Fever is less reliable in the elderly; they may have little to no fever or only a low-grade rise. A productive cough is also less consistently present in older adults, who may have a dry or nonproductive cough or difficulty producing sputum. Clear lung sounds don’t reliably indicate absence of pneumonia, since auscultation can be difficult or may not reveal typical crackles in the elderly due to age-related changes or baseline lung conditions.