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w.RADT 111 > week 9 MRO (Mod 11) > Flashcards

week 9 MRO (Mod 11) Flashcards

1
Q

An animal or plant that nourishes another organism is termed a:

A

host

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2
Q

An infection that results from an intervention or treatment by a physician is classified as:

A

iatrogenic

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3
Q

Strep throat is caused by a:

A

bacteria

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4
Q

Which infection-causing agent can only reproduce within a living cell?

A

virus

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5
Q

Which type of infection is increasing in immunocompromised patients?

A

mycotic

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6
Q

true/false: Health care workers are at an increased risk to contract HIV through occupational exposure as compared to workers outside of health care.

A

false

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7
Q

Which type of hepatitis virus is of primary concern to health care workers?

A

Hepatitis B

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8
Q

Which type of hepatitis virus is usually transmitted via feces-contaminated food or water?

A

Hepatitis A

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9
Q

an inanimate object that has been contaminated by an infectious agent, such as the x-ray table.

A

fomite

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10
Q

an arthropod that harbors an infectious agent in its body, e.g., a mosquito or tick.

A

vector

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11
Q

Blood-borne pathogens of concern to health care workers are:

A

HIV, Hepatitis B and C

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12
Q

The most common occupational exposure to blood-borne pathogens is:

A

needlestick injury

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13
Q

Health care workers can protect themselves from exposure to airborne pathogens by:

A

wearing special filter masks

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14
Q

Which of the following pathogens is classified as airborne?

Tuberculosis
Hepatitis B
HIV
Pneumonia

A

TB

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15
Q

In terms of the cycle of infection, any environment in which a pathogen can flourish is termed a:

A

reservoir

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16
Q

What population is at the greatest risk as a susceptible host?

A

immunocompromised patients

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17
Q

Which of the following is the mode of transmission for E. coli bacteria?

A

contact

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18
Q

The practice of separating infectious patients from others and carefully controlling items that come in contact with these patients is called:

A

transmission based precautions

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19
Q

Before entering the room of a patient who is under protective precautions, the first step is to:

A

perform hand hygiene

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20
Q

A patient who is under airborne precautions is transported to the radiology department. Which of the following statements applies?

A

the patient must wear a mask

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21
Q

A system of protective guidelines used to protect against disease transmission defines:

A

Standard Precautions

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22
Q

According to Standard Precautions, personal barriers can be worn to protect the:
(1) skin
(2) eyes
(3) respiratory system

A

1, 2, and 3

23
Q

When performing a mobile chest x-ray on a patient under contact precautions, which of the following statements would apply?

  1. The patient should wear a mask.
  2. The imaging equipment should be cleaned before entering the patient’s room.
  3. The IR should be covered with a fluid-resistant barrier.
  4. The radiographer should wear a special filter mask.
A

The IR should be covered with a fluid-resistant barrier.

24
Q

Which type of transmission-based precautions would be used on a patient with influenza?

A

Droplet

25
Q

While performing mobile radiography on a patient with MRSA, which of the following should you wear?
(1) gown
(2) gloves
(3) filter mask

A

1 and 2

26
Q

What type of precautions would be used when working with a patient with bronchogenic carcinoma?

A

Cancers do not require transmission-based precautions.

27
Q

The process of decreasing the number of infectious agents present in an environment defines:

A

medical asepsis

28
Q

Destruction of pathogens by chemical means is termed:

A

disinfection

29
Q

How often should the x-ray table be cleaned?

A

after every procedure

30
Q

How often should countertops and other work areas be cleaned?

A

twice a day

31
Q

The recommended duration for lathering hands during hand hygiene is:

A

10-15 seconds

32
Q

Which of the following would apply when disposing of linens that are visibly soiled with blood?
(1) Pour blood-contaminated areas with 1:10 bleach solution.
(2) Wear gloves to handle linens.
(3) Dispose of linens in biohazard container

A

2 and 3

33
Q

Which of the following disinfectants is recommended to prevent the spread of HIV?

1:10 solution of bleach and water
Hibiclens®
Lysol®
Acetic acid

A

1:10 solution of bleach and water

34
Q

Which of the following is the proper method to disinfect an x-ray table after a procedure?

A

Disinfect from the least contaminated area to the most contaminated area.

35
Q

true/false: Alcohol-based hand rubs are more effective for killing microbes than soap and water hand washing.

A

true

36
Q

what is the most common type of sterilization?

A

moist heat

37
Q

An autoclave is a device that_____________ and is the ________________ method of sterilization.

A

provides steam under pressure, most efficient and convenient

38
Q

what can an autoclave/moist heat sterilization sterilize?

A

noncorrosive metals and glass

39
Q

Dry heat, such as the heat achieved in an oven, may be used to sterilize __________________________

A

sharp instruments or other items sensitive to moisture.

40
Q

dry heat requires ________ and _________ than moist heat.

A

much more time and higher temperatures

41
Q

Dry heat sterilizers have a limited use because certain items, such as _____, cannot be sterilized in them due to _____________________

A

plastics, the increased time required.

42
Q

____________ is used for items that cannot withstand the high temperatures or moisture needed for dry or moist heat methods

A

gas sterilization

43
Q

gas sterilization is used for items that cannot withstand the high temperatures or moisture needed for ____________

A

dry or moist heat methods

44
Q

Gas sterilization is primarily used for ________________________

A

electrical, plastic, and rubber items

45
Q

gas sterilization method is highly effective, but the ___________________.

A

gases used are highly toxic

46
Q

The newer and safer method of gas sterilization is termed ____________________

A

gas plasma technology

47
Q

in gas plasma technology, ______________ kill the microorganisms, then are converted into _____________

A

free radicals, nontoxic byproducts

48
Q

gas plasma cannot be used on_______________ or on _________________

A

instruments with long, narrow lumina, cellulose materials such as paper, cotton, or linen

49
Q

________________ involves the immersion and soaking of items in a germicidal solution. Then after an appropriate amount of time, they are rinsed in ________

A

Chemical sterilization, sterile water

50
Q

_________ sterilization is the least effective and the least reliable.

A

chemical

51
Q

what is the temp range for autoclave?

A

250-275F

52
Q

what is the temp range for conventional gas?

A

135F

53
Q

what gases are used in conventional gas sterilization?

A

Freon, ethylene oxide

w.RADT 111 (14 decks)

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