Exam (elaborations)
MRSO EXAM QUESTIONS WIITH 100% VERIFIED ANSWERS
- Course
- Institution
MRSO EXAM QUESTIONS WIITH 100% VERIFIED ANSWERS...
[Show more]
Seller
Follow
Content preview
MRSO EXAM QUESTIONS WIITH 100%VERIFIED ANSWERS
How do magnetic flux lines travel?
A. North to South.
B. South to North.
C. East to West.
D. West to East - Answer: A North to South.
Which of the following could be a safety problem for a patient in a static magnetic
field?
A. Electrically conductive materials.
B. Ferrous objects
C. Magnetic objects
D. All of the options. - ANSWER D. All the options
What do you name an object that retains its magnetic field after leaving a static
magnetic field?
A. Paramagnetic
B: Diamagnetic
C) Ferromagnetic
D. Superparamagnetic - Answer: C. Ferromagnetic.
What direction does a permanent MR unit's vector point?
,A. Horizontal
B. Vertical.
C. Diagonal.
D. Variable: ANSWER B. Vertical
What distinguishes a superconductive MR unit from a resistive MR unit?
A. Cryogen
B. Coils of wire
C. Permanent magnets
D. None of the options - ANSWER A. Cryogen
What is the term used to describe the growing strength of magnetism as we
approach the MR unit?
A. Ferromagnetism
B. Spatial magnetic gradient field.
C. Vector
D. B0 - ANSWER B: Spatial magnetic gradient field
What is responsible for drawing ferrous things to the MR unit?
A. Spatial magnetic gradient fields
B. Strong, homogeneous magnetic fields
C. Gradient coils.
D. Radiofrequency system - ANSWER A. Spatial magnetic gradient fields
,What would happen if we placed a little ferrous object near the isocenter?
A. The item would feel no attraction.
B. The object would be quickly drawn to the bore.
C. The thing would levitate.
D. The object would be repelled by the unit. - ANSWER A: The object would have
no attraction.
Where will the rotational force be strongest?
A. Isocenter
B. Outside the MRI room.
C. At the gantry opening.
D. At the 5 gauss line, ANSWER A. Isocenter
Passive shielding employs which of the following?
A. Coils of wire with electrical current coursing through them.
B. Magnetically conductive materials.
C. Plastic
D. Wood - Answer: B. Magnetically conductive materials
How can we mitigate the hazards related with Lenz's force?
A. There are no hazards linked with Lenz' force.
B. Use a cold compress to minimize heat.
, C. Move rapidly to get the patient out of the scanner.
D. Slowly advance the subject inside the scanner. - ANSWER D. Slowly advance
the patient inside the scanner.
An implant has a deflection of 23 degrees. Is it safe for this patient to have an MRI
under static magnetic fields?
A. Yes
B. Call the manufacturer to determine the conditions.
C. No
D. Not enough information. - Answer A: Yes.
Which of the following stainless steels are non-ferrous?
A. Ferritic
B: Martensitic
C. Austenitic.
D. All are ferrous. ANSWER: C. Austenitic
It is dangerous for a patient to pass the 5 gauss line. How many milliteslas is this?
A. 0.5mT
B. 5mT
C. 50mT
D. ANSWER A: 0.005mT. 0.5mT
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Humat. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now