An agent that destroys pathogenic microorganisms on inanimate objects only is best described as a:
a. virucide. c. bactericide.
b. germicide. d. disinfectant.
Q. 2 Which of the following is a common pathogen that could cause a disruption of normal flora in a patient receiving antibiotic therapy?
a. Clostridium difficile c. Enterobacteriaceae spp.
b. Pneumocystis ca-rinii d. Pseudomonas ae-ruginosa
Q. 3 Which of the following are the two primary human barriers to infection in the health care setting?
a. Disinfection and sterilization
b. Immunologic and mechanical
c. Disinfection and pasteurization
d. Hand-washing and personal protective equipment
Q. 4 A budding unicellular organism revealed in the microscopic examination of sputum is most likely:
a. yeast. c. Rickettsia.
b. Bacillus. d. Clostridium.
Q. 5 The spread of diseases requires all of the following, except:
a. pathogen source. c. mode of transmis-sion.
b. immunosuppression. d. susceptible host.
Q. 6 All of the following organisms can be transmitted via the respiratory tract, except:
a. hepatitis. c. varicella.
b. influenza. d. parainfluenza.
Q. 7 Which of the following is the least likely mode of transmission for a nosocomial infection?
a. Airborne c. Vector-borne
b. Through fomites d. Direct contact
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