MRSO EXAM 1, EXAM 2, EXAM 3 AND EXAM 4 NEWEST 2024 ACTUAL EXAM COMPLETE 300 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A

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MRSO EXAM 1, EXAM 2, EXAM 3 AND EXAM 4

NEWEST 2024 ACTUAL EXAM COMPLETE 300

QUESTIONS AND CORRECT DETAILED

ANSWERS (VERIFIED ANSWERS) |ALREADY

GRADED A

MRSO EXAM 1

An object that produces a weakly repulsive force in the presence

of a strong magnetic field is called what?

a. Superparamagnetic

b. Ferromagnetic

c. Diamagnetic

d. Paramagnetic - ANSWER- c. Diamagnetic

What are the risks associated with translational force?

a. Missile effect

b. Proximity heating

c. Antenna effect

d. Peripheral nerve stimulation - ANSWER- a. Missile effect

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Which of the following are recommended by the ACR guidance

document in MR safety 2013 in proper scanning of a patient?

a. Patient gown

b. Written screening sheet

c. Metal detector

d. Ferromagnetic detection system - ANSWERThe gradient coils are responsible for which of the following?

Select all that apply.

a. Heating

b. Rotational force

c. Translational force

d. Magnetohydrodynamic effect

e. Noise

f. Peripheral nerve stimulation - ANSWER- e. Noise

f. Peripheral nerve stimulation

Why is magnetic shielding used in an MR unit?

a. To reduce heating

b. To reduce the e-fields

c. To maintain field homogeneity

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d. To limit the fringe field - ANSWER- d. To limit the fringe

field

What document has established guidelines for MRI safety that

are followed today?

a. ACR white paper MRI safety

b. HIPPA

c. FDA guidelines of MRI

d. OSHA - ANSWER- a. ACR white paper MRI safety

Pain at the injection site when gad contrast is administered is

considered what?

a. Anaphylaxis

b. A non-allergic reaction

c. None of the choices

d. Allergic reaction - ANSWER- b. a non-allergic reaction

Normal kidneys should excrete all gad from a patient how

quickly?

a. 24 hours

b. 6 hours

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c. 12 hours

d. 32 hours - ANSWER- a. 24 hours

Contrast media will do what to our tissue?

a. Shorten T1 relaxation times

b. Shorten T1 & T2 relaxation times

c. Increase T2 relaxation times and decrease T1 relaxation times

d. Shorten T2 relaxation times - ANSWER- b. Shorten T1 & T2

relaxation times

Resonance occurs when:

a. The patient is placed in isocenter and only experiences the

static magnetic field.

b. The radiofrequencies transmitted are different than the

precessional speed of hydrogen

c. The radiofrequencies transmitted match the precessional

speed of hydrogen

d. The radiofrequency is transmitted at 42.6 MHz - ANSWERc. The radiofrequencies transmitted match the precessional

speed of hydrogen