Question 1

A virus:

Accepted Answer

A)   is more complex than a bacterium but simpler in form than an animal cell.
B)   is eukaryotic.
C)   is an obligate intercellular parasite.
D)   is prokaryotic.
E)   a, c, and d. C

Question 2

The process of destroying pathogens by using chemical materials is called:

Accepted Answer

A)   microbial dilution.
B)   disinfection.
C)   surgical asepsis.
D)   sterilization.
E)   none of the above. B

Question 3

A bacterium:

Accepted Answer

A)   falls into the eukaryote family.
B)   is a single-celled, prokaryotic microorganism.
C)   has a true nucleus and organelles.
D)   a and b.
E)   all of the above. B

Question 4

Which of the following is/are true?

Accepted Answer

A)   An x-ray table can be a fomite.
B)   Medical asepsis is still the first line of defense in preventing the spread of disease.
C)   Mouth-to-mouth resuscitation should be used rather than mouthpieces and Ambu bags.
D)   a and b.
E)   all of the above.

Question 5

Anne begins her radiology career working with patients receiving air contrast barium enemas and barium meals for lower and upper GI exams. One of her less glamorous responsibilities is straightening the changing room between patients. Which of the following is/are not part of correct procedures for handling used gowns when patients have left them behind?

Accepted Answer

A)   Shake the gown lightly but firmly, holding it away from yourself and shaking it over the hamper only.
B)   Fold fecal-soiled linens so that the stain is in the center before placing (not tossing)  it into the hamper with other linens; this protects laundry workers.
C)   Immediately dispose of any linens that touch the floor, whether they have been used yet or not.
D)   a and b.
E)   all of the above.

Question 6

Which of the following statements is true?

Accepted Answer

A)   Candida albicans causes urinary, vaginal, and respiratory diseases; its presence in the human body, once detected, must be eradicated.
B)   It is a myth that you can catch a disease from someone who handles only your bed linen.
C)   The human body is the most common reservoir of infection, unless hospitalized, where medical asepsis makes disease spread virtually impossible.
D)   An infectious individual can spread disease by merely speaking in the vicinity of a susceptible host.
E)   None of the above statements is true.

Question 7

Protozoa:

Accepted Answer

A)   are unicellular.
B)   are larger than bacteria.
C)   do not posses a cell wall.
D)   are eukaryotic.
E)   are all of the above.

Question 8

When cleaning the radiology department:

Accepted Answer

A)   always clean from the least contaminated area toward the more contaminated area.
B)   always clean from the top down.
C)   always clean from the most contaminated area toward the least contaminated area.
D)   a and b.
E)   b and c.

Question 9

Health care workers should wash their hands:

Accepted Answer

A)   before contact with patients.
B)   after contact with patients.
C)   before invasive procedures.
D)   a and c.
E)   all of the above.

Question 10

For preventing the spread of HIV, the CDC recommends ____ as the preferred disinfectant.

Accepted Answer

A)   Clorox
B)   Lysol
C)   Staphene
D)   Cidex
E)   none of the above

Question 11

For infections to be transmitted there must first be:

Accepted Answer

A)   an infectious organism.
B)   a reservoir of infection.
C)   a susceptible host.
D)   a means of transporting the organism.
E)   all of the above.

Question 12

Universal precautions focus on:

Accepted Answer

A)   isolation of a patient with a diagnosed disease.
B)   the need to use barriers in all patient contacts, as the specific diagnosis requires.
C)   the use of barriers in all contacts with all body substances.
D)   limiting health care workers with oozing sores to handling only patient care equipment, not the patients themselves.
E)   all of the above.

Exam 9: Infection Prevention and Control