The rapid turning on and off of the gradient coil can produce which of the follow events
in our patient? - Answer Peripheral nerve stimulation, Magnetophosphenes
What is the type of gradient coil used to produce axial images - Answer Maxwell coil
A gadolinium ion is attached to a molecule called...
MRSO Questions & Correct Revised Verified
Answers
The rapid turning on and off of the gradient coil can produce which of the follow events
in our patient? - Answer Peripheral nerve stimulation, Magnetophosphenes
What is the type of gradient coil used to produce axial images - Answer Maxwell coil
A gadolinium ion is attached to a molecule called a/an ____ Sonia can be excreted from
a patient - Answer Ligand
The B1 field is found where? - Answer 90* to the B0
This person is responsible for offering suggestions onMR protocol modifications,
offering advice on MR safety programs and MR quality assurance programs, providing a
high level of advice on safety aspects of MR equipment, and reporting this info to the
MRMD. This person is usually a physicist - Answer MRSE
The quench is not experienced right away, after about____ the cryogen is released from
the MRI unit through the quench vent - Answer 15-20 seconds
The 45* deflection of an implant is equal to what force? - Answer 1 gravity force
What unit of measurement is used for the SAR in MRI? - Answer W/kg
Common complaints in the MEI environment due to the fast changing gradient
activations are... - Answer Nystagmus, Nausea, Dizziness
,A tech walks into the MR room to check on a patient. As they do this, they stick their
head into the scammer quickly. What can occur from this movement through the static
magnetic field? - Answer Magnetophosphenes, Nausea, vertigo
Which of the following are true of a metal detector? - Answer They are able to detect
only metal substances
What does a cryogen do to the static magnetic field solenoid? - Answer It reduces/
eliminates resistance in wires
Which of the following are the units of measure for the static magnetic field? - Answer
Tesla
The B1 refers to what? - Answer The direction of the RF field
The electrical fields associated with RF can cause what when exposing our patient -
Answer Burning
What type of MR units uses many bricks of magnets to produce a strong magnetic field?
- Answer Permanent magnet
A patient develops two hives on their chest after a gadolinium contrast injection. What
type of adverse event is this considered? - Answer Allergic reaction
The process of releasing a cryogen form the MR unit is called? - Answer Quench
In order for cryogen to not harm a patient, what needs to happen? - Answer The
cryogen needs to be vented outside
, A ____ field of view will utilize a steeper frequency encoding gradient. This will promote
peripheral nerve stimulation. - Answer Smaller
A patient receives an injection of gadolinium and has pain at the injection site. What
would this be considered? - Answer A non-allergic reaction
What is the difference between an allergic reaction to contrast media and an
anaphylactic reaction? - Answer Anaphylactic reactions are more serious
The slope of the phase encoding gradient amplitude will determine how much
resolution we will have in our image. Therefore a ___ gradient slope will produce high-
resolution images - Answer Steeper
Induction of electrical current in our patient from changing magnetic fields can be
described by which of the following? - Answer Faraday's Law of induction
Which formula is used to define the time varying gradient fields? - Answer Db/dt
A headache after a contrata media injection is considered what possible adverse event?
- Answer Non-allergic reaction
What is the name for the direction of magnetic flux densities produced by the static
magnetic field? - Answer B0
What is the maximum allowable strength of the gradient coils for a given sequence
called? - Answer Maximum gradient peak
Inside the bore of the MRI, where would we expect the gradient coils to be found? -
Answer Surrounding the patient peripheral to isocenter
Voordelen van het kopen van samenvattingen bij Stuvia op een rij:
Verzekerd van kwaliteit door reviews
Stuvia-klanten hebben meer dan 700.000 samenvattingen beoordeeld. Zo weet je zeker dat je de beste documenten koopt!
Snel en makkelijk kopen
Je betaalt supersnel en eenmalig met iDeal, creditcard of Stuvia-tegoed voor de samenvatting. Zonder lidmaatschap.
Focus op de essentie
Samenvattingen worden geschreven voor en door anderen. Daarom zijn de samenvattingen altijd betrouwbaar en actueel. Zo kom je snel tot de kern!
Veelgestelde vragen
Wat krijg ik als ik dit document koop?
Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.
Tevredenheidsgarantie: hoe werkt dat?
Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.
Van wie koop ik deze samenvatting?
Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper Examsplug. Stuvia faciliteert de betaling aan de verkoper.
Zit ik meteen vast aan een abonnement?
Nee, je koopt alleen deze samenvatting voor €11,97. Je zit daarna nergens aan vast.
