MRI Safety Protocols/Patient prep and communication

Ferromagnetic object screening

Which of the following is a crucial element of MRI safety protocols to prevent accidents involving ferromagnetic objects?

Temperature control

Magnetic resonance imaging

Ferromagnetic object screening

Radiation protection

Magnetic field strength

The "four-zone model" is commonly used in MRI safety to categorize areas based on

Temperature control

Acoustic noise levels

Operator attire.

Magnetic field strength

False

MRI safety protocols are primarily designed to protect the MRI machine and its components.

True

False

A sudden loss of the main magnetic field

In MRI safety, the term "quench" refers to:

Turning off the lights in the MRI room

Reducing acoustic noise levels

A sudden loss of the main magnetic field

Using high-field magnets

The control room

The "Zone III" of the four-zone model in MRI safety typically includes.

The MRI scanner room

The control room

The waiting area

The hospital lobby

True

All individuals entering Zone IV of the MRI suite must be screened for ferromagnetic objects.

True

False

To control access to Zone III

What is the purpose of "Zone II" in the four-zone model of MRI safety?

To house the MRI scanner

To control access to Zone III

To store patient records

To monitor temperature control

Gauss (G)

The static magnetic field of an MRI machine is typically measured in units of:

Decibels (dB)

Hertz (Hz)

Gauss (G)

Lumens (lm)

Can be used in the MRI environment under specific condition

In MRI safety, the "MR Conditional" label indicates that a medical device:

Can be used in the MRI environment under specific condition

Must not be used in the MRI environment

Is only suitable for Zone I

Emits ionizing radiation.

ACR (American College of Radiology)

Which organization provides guidelines and standards for MRI safety?

WHO (World Health Organization)

. IAEA (International Atomic Energy Agency)

ACR (American College of Radiology)

ICD (International Classification of Diseases)

all above

Safety issues to consider with a strong static field, B0 are: ICD (International Classification of Diseases)

biological effects

projectile hazards

compatibility of implantable medical devices

all above

a&b

which option is correct for Static magnet field limits?

Under 1 month old, 4T

Over 1 month old, 8T

a&b

none

True

fringe field is the magnetic field that extends beyond the bore of the magnet in all directions

True

False

A and C

What is a Time-varying field:

RF transmit coils.

Main magnet

Gradient coil

A and C

True

light flashes in the eyes. Mild cutaneous sensations. Involuntary muscle contractions. Cardiac arrhythmias. Acoustic noise is Time-varying bioeffects from gradient coils.

True

False

False

Zone IV in the four-zone model is the area immediately outside the MRI suite

True

False

False

MRI safety protocols are only relevant for MRI operators and technologists

True

False

False

Ferromagnetic objects are always attracted to the MRI magnet with great force.

True

False

False

The "no-movement" zone in the MRI suite is usually in Zone II.

True

False

False

MRI safety protocols are primarily focused on preventing temperature fluctuations.

True

False

Radiofrequency (RF) Shielding

Designed to protect against RF energy interference in the MRI environment

Cryogen Quench Pipes

A safety feature to prevent the escape of cryogens in case of a magnet quench

Screening Procedures

Used to check individuals and equipment for ferromagnetic objects

Gradient Coils

Coils used to produce gradient magnetic fields in MRI, which are shielded to prevent accidents

Administering intravenous contrast

Patient preparation in MRI includes all of the following except:

Explaining the MRI procedure to the patient

Administering intravenous contrast

Screening for contraindications

Ensuring the patient's comfort

False

Patient preparation is primarily the responsibility of the radiologist

True

False

Ensure patient cooperation and minimize motion artifacts

In MRI, effective patient communication is essential to

Calibrate the MRI machine

Ensure patient cooperation and minimize motion artifacts

Maintain the MRI room's temperature

Keep the MRI room clean.

Ensure patient safety and verify the correct patient, procedure, and site

The "time-out procedure" in MRI is typically used to:

Calculate the patient's body mass index (BMI)

Ensure patient safety and verify the correct patient, procedure, and site

Check the MRI machine's software version

Calibrate the RF coils.

True

In MRI, the use of sedation is discouraged, and patients should be awake and cooperative during the scan.

True

False

Claustrophobia

Which of the following patient conditions may require special considerations or modifications during an MRI scan?

Claustrophobia

Right-handedness

Seasonal allergies

Patient's height

Previous surgeries or medical conditions

MRI operators should always ask patients about their medical history, including:

Their favorite hobbies

Previous surgeries or medical conditions

Their preferred temperature in the MRI room

To set the MRI room's lighting

To identify any potential risks or contraindications

What is the primary reason for asking patients about their medical history before an MRI scan?

To recommend a specific MRI machine

To provide the patient with a snack

To identify any potential risks or contraindications

To set the MRI room's lighting

False

Effective patient communication is only necessary before the MRI scan and is not relevant during the scan itself

True

False

The patient for any ferromagnetic objects or medical devices

The concept of "MRI safety screening" involves assessing

The patient's musical preferences

The compatibility of the patient's shoes with MRI

The patient for any ferromagnetic objects or medical devices

The patient's knowledge of MRI technology

LEVEL 2 SCREENING

TO BE PERFORMED ONLY BY THE MR TECHNOLOGIST:

LEVEL 2 SCREENING

LEVEL 1 SCREENING

A and B

None

All patients

An alarm / panic button must always be provided for:

Claustrophobic patient

Pediatric patient

All patients

A and B

Level 1 MR Personnel

Individuals who have successfully passed safety educational efforts as defined by the facility's MR Medical Director

Level 1 MR Personnel

Level 2 MR Personnel

Not MR Personnel

none

False

Patient preparation is a minor aspect of the MRI process and does not significantly impact the quality of the images.

True

False

True

The time-out procedure is used to verify the correct patient, procedure, and site to ensure patient safety.

True

False

True

Patients with claustrophobia may require sedation during an MRI scan

True

False

False

Patient communication is relevant only in pediatric MRI.

True

False

False

MRI operators should always assume that patients have no contraindications and no ferromagnetic objects on them.

True

False

True

Minors who are under 18 years old may not sign the screening form and it must be completed under the supervision of a parent or knowledgeable guardian.

True

False

Empathy

Showing understanding and sensitivity to the patient's feelings and concerns

Open ended questions

Encouraging the patient to express their thoughts and concerns.

Clear Instructions

Providing detailed and easily understandable information about the MRI procedure

Active listening

Paying close attention to the patient's verbal and non-verbal cues