Question

14. Bacteria capsules: a Somewhat protect the organism from destruction in an unfavorable enviro b) Enhances the organism's virulence. c) Helps hide the organism from the host's immune system. d) All of the above are true. 15. Empty glassware and metal instruments might correctly be sterilized by: a) Autoclaving b) Dry heat c) UV light d) Ionizing radiation 16. Disinfectants: a) May be applied to the skin surfaces b) May be used to decontaminate wounds and abrasions. c) May be used as a pre-op scrub d) All of the above e) None of the above 17. Germistatic substances are chemicals: a) That retard the growth and multiplication and growth of organisms. b) That kill the organism. c) Kill micro-organisms on non-living surfaces only d) That are effective against TB. 18. In order to produce a disease, an organism: a) Must be able to colonize the host. b) Must be able to multiply and damage the host tissues. c) Must be able to enter the host's tissues. d) All of the above are correct. 19. Endemic flora: a) Colonize all host surfaces. b) Provide a protective function for the host. c) Can cause disease, if the over grow. d) All of the above are correct of endemic flora. 20. Which of the following are not correct? A nosocomial infection might be acqui red a) In a nursing home. b) In a hospital. c) In a day care center. d) All of the above are possible sources of nosocomial infections.

Answer 1

ANSWER

14.d. All of the above are true. bacterial capsule protect the organism and enhance

     virulence and hide the organism from host immune system.

15.a.Empty glasswares and metal instruments are sterilized by autoclaving.

16.d. All of the above. Disinfectants are used on skin surface,decontamination

       of wounds and abrasions and used as a pre op scrub.

17.a. Germistatic substances retard the growth and multiplication of microorganisms.

18.d. All of the above .To produce disease organism should enter,colonize and damage

       the host tissue.

19.d. All of the above. endemic flora present in all host surface and protect host from

         various infections but it's overgrowth leads to diseases.

20.b. In a day care center. Nosocomial infection are infection which acquired from a

         health care setting after 48 hours of admission.