A Group of Researchers Collected Demographic and Clinical Data from Multiple

question 307

Multiple Choice

A group of researchers collected demographic and clinical data from multiple hospitals across the nation to determine epidemiological features of nosocomial bloodstream infections.  In this study, a nosocomial bloodstream infection was diagnosed if blood cultures drawn 48 hours after admission yielded a pathogenic organism.  Analysis of the data collected over several decades shows that staphylococci are increasingly responsible for the identified cases.  An increased use of which of the following is most likely the underlying cause of the observed trend?

• A)Bioprosthetic heart valves
• B)Broad-spectrum antibiotics
• C)Illicit injection drugs
• D)Immunomodulating therapies
• E)Indwelling urinary catheters
• F)Intravascular catheters

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Definitions:

Daily Average

The daily average refers to the average quantity or value of something measured over a single day.