UF CPP Infectious Diseases Practice Test

Aspiration type pneumonia is best defined as

Inhalation of foreign materials into the airways Bacteria in the bloodstream Viral infection Allergic reaction

Correct Answer:

Inhalation of foreign materials into the airways

Explanation:

Aspiration pneumonia is defined by the inhalation of foreign materials into the airways. This means material from the oropharynx or stomach—such as saliva, food, or gastric contents—drops into the lower respiratory tract, causing inflammation and often infection. It’s not about bacteria in the bloodstream, a primary viral infection, or an allergic reaction. Clinically, risk factors include impaired consciousness or swallowing (for example, after anesthesia, a stroke, or heavy alcohol use). The inhaled material can introduce anaerobic bacteria from the throat, leading to a polymicrobial infection, but the key concept remains the entry of material into the airways rather than a bloodstream infection, a viral pathogen, or an allergic process.

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