week 9 MRO (Mod 11)

Question 1

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

Answer 1

host

Question 2

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

Answer 2

iatrogenic

Question 3

Strep throat is caused by a:

Answer 3

bacteria

Question 4

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

Answer 4

virus

Question 5

Which type of infection is increasing in immunocompromised patients?

Answer 5

mycotic

Question 6

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

Answer 6

false

Question 7

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

Answer 7

Hepatitis B

Question 8

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

Answer 8

Hepatitis A

Question 9

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

Answer 9

fomite

Question 10

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

Answer 10

vector

Question 11

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

Answer 11

HIV, Hepatitis B and C

Question 12

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

Answer 12

needlestick injury

Question 13

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

Answer 13

wearing special filter masks

Question 14

Which of the following pathogens is classified as airborne?

Tuberculosis
Hepatitis B
HIV
Pneumonia

Answer 14

TB

Question 15

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

Answer 15

reservoir

Question 16

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

Answer 16

immunocompromised patients

Question 17

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

Answer 17

contact

Question 18

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

Answer 18

transmission based precautions

Question 19

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

Answer 19

perform hand hygiene

Question 20

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

Answer 20

the patient must wear a mask

Question 21

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

Answer 21

Standard Precautions

Question 22

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

Answer 22

1, 2, and 3

Question 23

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.

Answer 23

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

Question 24

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

Answer 24

Droplet

Question 25

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

Answer 25

1 and 2

Question 26

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

Answer 26

Cancers do not require transmission-based precautions.

Question 27

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

Answer 27

medical asepsis

Question 28

Destruction of pathogens by chemical means is termed:

Answer 28

disinfection

Question 29

How often should the x-ray table be cleaned?

Answer 29

after every procedure

Question 30

How often should countertops and other work areas be cleaned?

Answer 30

twice a day

Question 31

The recommended duration for lathering hands during hand hygiene is:

Answer 31

10-15 seconds

Question 32

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

Answer 32

2 and 3

Question 33

Which of the following disinfectants is recommended to prevent the spread of HIV? 1:10 solution of bleach and water Hibiclens® Lysol® Acetic acid

Answer 33

1:10 solution of bleach and water

Question 34

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

Answer 34

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

Question 35

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

Answer 35

true

Question 36

what is the most common type of sterilization?

Answer 36

moist heat

Question 37

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

Answer 37

provides steam under pressure, most efficient and convenient

Question 38

what can an autoclave/moist heat sterilization sterilize?

Answer 38

noncorrosive metals and glass

Question 39

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

Answer 39

sharp instruments or other items sensitive to moisture.

Question 40

dry heat requires ________ and _________ than moist heat.

Answer 40

much more time and higher temperatures

Question 41

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

Answer 41

plastics, the increased time required.

Question 42

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

Answer 42

gas sterilization

Question 43

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

Answer 43

dry or moist heat methods

Question 44

Gas sterilization is primarily used for ________________________

Answer 44

electrical, plastic, and rubber items

Question 45

gas sterilization method is highly effective, but the ___________________.

Answer 45

gases used are highly toxic

Question 46

The newer and safer method of gas sterilization is termed ____________________

Answer 46

gas plasma technology

Question 47

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

Answer 47

free radicals, nontoxic byproducts

Question 48

gas plasma cannot be used on_______________ or on _________________

Answer 48

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

Question 49

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

Answer 49

Chemical sterilization, sterile water

Question 50

_________ sterilization is the least effective and the least reliable.

Answer 50

chemical

Question 51

what is the temp range for autoclave?

Answer 51

250-275F

Question 52

what is the temp range for conventional gas?

Answer 52

135F

Question 53

what gases are used in conventional gas sterilization?

Answer 53

Freon, ethylene oxide