What is defined in the captain of the ship doctrine?
a. It defines the fact that there is a person who is responsible for the care of another.
b. It does not apply in medicine.
c. It states that the technologist is responsible for the care of a patient.
d. none - Answer a. It defines the fact t...
What is defined in the captain of the ship doctrine?
a. It defines the fact that there is a person who is responsible for the care of another.
b. It does not apply in medicine.
c. It states that the technologist is responsible for the care of a patient.
d. none - Answer a. It defines the fact that there is a person who is responsible for the
care of another.
An MRI tech has heart disease and requires a pacemaker. What does this mean for this
tech?
a. They are unable to work in the MR environment
b. They can go into the MR environment as long as scanning is not taking place.
c. They must limit their time in zone IV.
d. None of the choices. - Answer a. They are unable to work in the MR environment
What is the ICNIRP occupational workers dose for magnetic flux limit for the head and
torso?
a. 2 T
b. 8 T
c. 400mT
d. 14T - Answer a. 2 T
What is the ICNIRP occupational workers dose magnetic flux limit for the extremities?
a. 2T
,b. 8T
c. 400mT
d. 14T - Answer b. 8T
Which of the following can be used to reduce Lenz's force risks to an object?
a. Advance the patient fast into the MR unit.
b. Advance the patient slowly in the MR unit.
c. Do not scan the patient because this is unsafe.
d. Have the patient approach the gantry at a 45 degree angle. - Answer b. Advance the
patient slowly in the MR unit.
A deflection of 45 degrees in a tested implant indicates that it deflects at a force equal
to what?
a. 1 gravity force
b. 2 gravity force
c. .05 gravity force
d. .25 gravity force - Answer a. 1 gravity force
A deflection of 90 degrees due to translation force indicates how much force is
experienced in the implant?
a. 1 gravity force
b. 2 gravity force
c. 0.5 gravity force
d. undetermined - Answer d. undetermined
Magnetophosphenes can be described as what?
a. Visually seeing flashing light while moving around the MRI unit.
, b. Iron in a patient's blood that becomes magnetized.
c. When the room lights dim due to the changing magnetic fields.
d. Visualizing an elevated T wave on the cardiac cycle - Answer a. Visually seeing flashing
light while moving around the MRI unit.
The magnetohydrodynamic effect describes artifacts seen where in the cardiac cycle?
a. T wave
b. R wave
c. QRS complex
d. P wave - Answer a. T wave
What is nystagmus?
a. Vision loss
b. Experiences different scents that are not really there.
c. Involuntary movement of the eyes from side to side.
d. Involuntary coughing and sneezing. - Answer c. Involuntary movement of the eyes
from side to side.
Which of the following are true?
I. MRI has been associated with teratogenises.
II. MRi can cause an increase in spontaneous abortion.
III. MRI promotes female offspring in working MR techs.
IV. MRI can cause infertility. - Answer None
What is teratogenesis?
a. The development of congenital abnormalities in an embryo or fetus.
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