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These are the four causes of health-care associated pneumonia (HCAP).
What are patients who have been hospitalized in an acute care facility for 2 or more days within 90 days of the infection, residents of a nursing home, patients who received intravenous antibiotic therapy, chemotherapy, or wound care within the last 30 days of the current infection, patients who receive hemodialysis in any setting?
Buzzwords = hospitalized within 90 days, nursing home, IV therapy within 30 days, and hemodialysis.