Rite ad 4 Flashcards
Emesis after a contrast media reaction is considered what type of adverse reaction?
A non-allergic reaction to contrast media
Identify the ferromagnetic threat. Select all the correct answers
Scissors
Metal hemostat
Scalpel
A _________field of view (FOV) will utilize a steeper frequency encoding gradient. This will promote peripheral nerve stimulation.
Smaller
The quench is not experienced right away, after about _______________, the cryogen is released from the MRI unit through the quench vent.
15-20 seconds
Which of the following is true of all types of stainless steel? Select all the correct answers.
All will cause artifacts in our image
Which of the following is true of a gadolinium contrast osmolarity?
It is greater than blood
Which of the following stainless steel is non-ferrous?
Austenitic
Which of the following personnel can enter zone 3 and 4 but not escort a patient into zone 4, according to the ACR Manual on MRI Safety?
MR personnel level I
The rapid turning on and off of the gradient coil can produce which of the following events in our patient? Select all that apply.
Magnetophosphenes
Peripheral nerve stimulation
A patient undergoing an MRI exam is given an ice pack to reduce heat. Which of these methods is the patient using to regulate their increased heating?
Conduction
Which of the following are NOT recommended by the ACR Manual on MRI Safety?
Metal detector
This individual must have an in-depth understanding of the risks associated with the MRI environment, according to the ACR Manual on MRI Safety.
Level 2 personnel
What is the risk with a non-ferrous pain pump?
Lenz’s force
A patient will change into a gown in most hospital settings within this zone, according to the ACR Manual on MRI Safety.
Zone 3
Zone 2
Zone 1
Zone 4
Zone II
In which ways can a patient self-regulate their temperature when they get overheated? Select all that apply.
Evaporation
Radiation
Which of the following are considered ferrous materials? Select all the answers that are correct.
Steel
Cobalt
Nickel
What is the maximum allowable strength of the gradient coils for a given sequence called?
Maximum gradient peak
Which of the following are units of measure for the static magnetic field (BO)?
Tesla
In a superconducting magnet, what makes the chirping noise
The chiller
All MR medical directors should report incidents to which of the following within one business day of an adverse event?
FDA Medwatch Program
Gadolinium contains what kind of magnet susceptibility?
Paramagnetic
How many gauss are in one Tesla?
10,000
What organization has produced the terms used in MR labeling (MR Safe, MR Conditional, etc.)?
ASTM International
A ligand that cages a gadolinium ion is referred to as?
Macrocyclic bond