Which of the following best describes why clinical areas are so ...

[CBme]

Which of the following best describes why clinical areas are so careful to ensure sanitization of surfaces and equipment between each patient?
 
  a. To avoid direct patient-to-patient transmission of infection
  b. To provide a clean environment for clients and staff
  c. To decrease transmission by fomites
  d. To decrease transmission by vectors

Question 2

Which of the following statements is true concerning tuberculosis (TB) infections in the United States?
 
  a. Subclinical cases of TB can occur in patients who fight off the infection and thus are not a danger to themselves or others.
  b. TB can be cured by a 6-month period of treatment with INH.
  c. TB can only be caused by the Mycobacterium bovis bacillus.
  d. Under certain conditions, susceptible hosts may be infected by the TB bacillus.

[juwms]

Answer to Question 1

ANS: C
Indirect transmission is the spread of infection through a vehicle of transmission outside the host. These may be contaminated fomites or vectors. Fomites can be any inanimate object, material, or substance that acts as a transport agent for a microbe (e.g., water, a telephone, or a contaminated tissue).

Answer to Question 2

ANS: D
The principle of multicausation emphasizes that an infectious agent alone is not sufficient to cause disease; the agent must be transmitted within a conducive environment to a susceptible host. Mycobacterium tuberculosis kills cells. M. tuberculosis has low infectivity, low pathogenicity, but high virulence if untreated.

[CBme]

Gracias!

[diana chang]

Thanks for the timely response, appreciate it