MRI Infection Control Exam Practice
Questions and Correct Answers
(Verified Answers) Plus Rationales 2027
Q&A | Instant Download Pdf
Question 1
What is the primary purpose of infection-control practices in an MRI department?
A. To improve MRI image resolution
B. To reduce scan time
C. To prevent transmission of infectious agents between patients, staff, and the
environment
D. To increase magnetic-field strength
Answer: C
The central purpose of infection control is to interrupt the transmission of
infectious microorganisms. In MRI, this includes proper hand hygiene, cleaning
and disinfection of patient-contact surfaces, appropriate handling of equipment,
and use of standard precautions.
Question 2
Which action is the most fundamental component of routine infection prevention
before and after patient contact?
A. Wearing two pairs of gloves
B. Using a surgical mask for every patient
C. Cleaning the MRI bore after every sequence
D. Performing appropriate hand hygiene
Answer: D
,Hand hygiene is a foundational infection-prevention measure. It reduces transfer
of microorganisms between patients, healthcare workers, equipment, and
environmental surfaces.
Question 3
When should hands generally be cleaned after removing gloves?
A. Only if the gloves were visibly torn
B. After glove removal
C. Only at the end of the work shift
D. Only after touching the MRI console
Answer: B
Gloves do not replace hand hygiene. Hands can become contaminated during
glove removal or through unnoticed glove defects, so hand hygiene should be
performed after removing gloves.
Question 4
What is the main reason gloves should not be worn from one patient examination
to another?
A. Gloves interfere with MRI radiofrequency signals
B. Gloves become magnetically attracted to the scanner
C. Gloves can transfer microorganisms between patients and surfaces
D. Gloves reduce the patient's oxygen level
Answer: C
Gloves can become contaminated during patient care. Wearing the same gloves
between patients can transfer microorganisms to subsequent patients and
equipment.
Question 5
,Which situation generally requires hand hygiene even when gloves were worn?
A. Only before entering Zone I
B. Only after touching the MRI console
C. Only after speaking with the patient
D. After removing contaminated gloves
Answer: D
Glove removal does not eliminate the possibility of hand contamination. Hand
hygiene after removing gloves is therefore an essential infection-control practice.
Question 6
Under the Spaulding classification system, equipment that contacts intact skin is
generally considered:
A. Critical
B. Semicritical
C. Sterile
D. Noncritical
Answer: D
Noncritical equipment contacts intact skin and does not ordinarily enter sterile
tissue or contact mucous membranes. Examples include many blood-pressure
cuffs and external patient-contact surfaces.
Question 7
What level of processing is generally appropriate for noncritical patient-care
equipment?
A. Sterilization after every use
B. High-level disinfection only
C. Cleaning followed by appropriate low-level disinfection
D. No processing if the equipment looks clean
Answer: C
, CDC guidance recommends low-level disinfection for noncritical patient-care
equipment that contacts intact skin. The specific product and procedure should
follow applicable manufacturer instructions.
Question 8
Which type of medical equipment is classified as semicritical?
A. Equipment that touches only intact skin
B. Equipment that contacts mucous membranes or nonintact skin
C. Equipment that never contacts the patient
D. Equipment used only in the MRI control room
Answer: B
Semicritical devices contact mucous membranes or nonintact skin. Such
equipment generally requires at least high-level disinfection unless another
validated processing method is indicated.
Question 9
Which category includes an instrument that enters normally sterile tissue or the
vascular system?
A. Noncritical
B. Environmental
C. Semicritical
D. Critical
Answer: D
Critical devices have the greatest infection risk because they enter sterile tissue or
the vascular system. They require sterilization before use.
Question 10
Why should cleaning occur before disinfection?
Questions and Correct Answers
(Verified Answers) Plus Rationales 2027
Q&A | Instant Download Pdf
Question 1
What is the primary purpose of infection-control practices in an MRI department?
A. To improve MRI image resolution
B. To reduce scan time
C. To prevent transmission of infectious agents between patients, staff, and the
environment
D. To increase magnetic-field strength
Answer: C
The central purpose of infection control is to interrupt the transmission of
infectious microorganisms. In MRI, this includes proper hand hygiene, cleaning
and disinfection of patient-contact surfaces, appropriate handling of equipment,
and use of standard precautions.
Question 2
Which action is the most fundamental component of routine infection prevention
before and after patient contact?
A. Wearing two pairs of gloves
B. Using a surgical mask for every patient
C. Cleaning the MRI bore after every sequence
D. Performing appropriate hand hygiene
Answer: D
,Hand hygiene is a foundational infection-prevention measure. It reduces transfer
of microorganisms between patients, healthcare workers, equipment, and
environmental surfaces.
Question 3
When should hands generally be cleaned after removing gloves?
A. Only if the gloves were visibly torn
B. After glove removal
C. Only at the end of the work shift
D. Only after touching the MRI console
Answer: B
Gloves do not replace hand hygiene. Hands can become contaminated during
glove removal or through unnoticed glove defects, so hand hygiene should be
performed after removing gloves.
Question 4
What is the main reason gloves should not be worn from one patient examination
to another?
A. Gloves interfere with MRI radiofrequency signals
B. Gloves become magnetically attracted to the scanner
C. Gloves can transfer microorganisms between patients and surfaces
D. Gloves reduce the patient's oxygen level
Answer: C
Gloves can become contaminated during patient care. Wearing the same gloves
between patients can transfer microorganisms to subsequent patients and
equipment.
Question 5
,Which situation generally requires hand hygiene even when gloves were worn?
A. Only before entering Zone I
B. Only after touching the MRI console
C. Only after speaking with the patient
D. After removing contaminated gloves
Answer: D
Glove removal does not eliminate the possibility of hand contamination. Hand
hygiene after removing gloves is therefore an essential infection-control practice.
Question 6
Under the Spaulding classification system, equipment that contacts intact skin is
generally considered:
A. Critical
B. Semicritical
C. Sterile
D. Noncritical
Answer: D
Noncritical equipment contacts intact skin and does not ordinarily enter sterile
tissue or contact mucous membranes. Examples include many blood-pressure
cuffs and external patient-contact surfaces.
Question 7
What level of processing is generally appropriate for noncritical patient-care
equipment?
A. Sterilization after every use
B. High-level disinfection only
C. Cleaning followed by appropriate low-level disinfection
D. No processing if the equipment looks clean
Answer: C
, CDC guidance recommends low-level disinfection for noncritical patient-care
equipment that contacts intact skin. The specific product and procedure should
follow applicable manufacturer instructions.
Question 8
Which type of medical equipment is classified as semicritical?
A. Equipment that touches only intact skin
B. Equipment that contacts mucous membranes or nonintact skin
C. Equipment that never contacts the patient
D. Equipment used only in the MRI control room
Answer: B
Semicritical devices contact mucous membranes or nonintact skin. Such
equipment generally requires at least high-level disinfection unless another
validated processing method is indicated.
Question 9
Which category includes an instrument that enters normally sterile tissue or the
vascular system?
A. Noncritical
B. Environmental
C. Semicritical
D. Critical
Answer: D
Critical devices have the greatest infection risk because they enter sterile tissue or
the vascular system. They require sterilization before use.
Question 10
Why should cleaning occur before disinfection?
