ARRT MRI Mock Registry Test (Latest 2026/2027 Update) Questions with Verified Answers| Grade A| 100% Correct.

ARRT MRI Mock Registry Test (Latest
2026/2027 Update) Questions with Verified
Answers| Grade A| 100% Correct.

Question:

The smallest object that can be resolved in an image acquired with a
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


24cm FOV and a 272 x 272 matrix is _________ mm.
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




i,- A. 0.76mm
i,-




i,- B. 0.88mm
i,-




i,- C. 0.93mm
i,-




i,- D. 1.13mm
i,-




i,- E. 1.24mm?
i,-




Answer:
0.88mm




Question:

To produce an image based on differences in T1, the time interval
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


between 90° excitation pulses should be:
i,- i,- i,- i,- i,-




i,- A. Long
i,-




i,- B. Short
i,-




i,- C. Refocussed
i,-

,i,- D. Inverted?
i,-




Answer:

Short




Question:

The energy used to form MRI images is ____________ the patient's tissues.
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




i,- A. Emitted from
i,- i,-




i,- B. Attenuated by
i,- i,-




i,- C. Amplified from
i,- i,-




i,- D. Reflected off?
i,- i,-




Answer:

Emitted from i,-




Question:

Referencing the Centers for Disease Control and Prevention (CDC), what
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


type of isolation precautions should be used for HIV-positive patients in
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


the MRI suite?
i,- i,-




i,- A. Respiratory
i,-




i,- B. Droplet
i,-




i,- C. Standard (universal)
i,- i,-




i,- D. Enteric
i,-

,i,- E. Contact?
i,-




Answer:

Standard (universal) i,-




Question:

___________ could be used to line the walls and/or floors of the MR magnet
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


room to reduce the fringe field, and is defined as __________ shielding.
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




i,- A. Copper; active
i,- i,-




i,- B. Steel; active
i,- i,-




i,- C. Copper; passive
i,- i,-




i,- D. Steel; passive
i,- i,-




i,- E. Lead; active?
i,- i,-




Answer:

Steel; passive i,-




Question:

If the TR in a gradient echo sequence is less than the T2 (or T2*), the
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


resulting condition is known as:i,- i,- i,- i,-




i,- A. Spin down
i,- i,-




i,- B. Steady state
i,- i,-




i,- C. Spin dephasement
i,- i,-

, i,- D. Thermal equilibrium?
i,- i,-




Answer:

Steady state i,-




Question:

Which type of blood cell is responsible for phagocytosis?
i,- i,- i,- i,- i,- i,- i,- i,-




i,- A. Leukocyte
i,-




i,- B. Erythrocyte
i,-




i,- C. Lymphocyte
i,-




i,- D. Platelet?
i,-




Answer:

Leukocyte




Question:

Which of the following, in an MRA sequence, aids in minimizing the loss
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


of signal due to dephasing within a voxel:
i,- i,- i,- i,- i,- i,- i,-




i,- A. Long TE
i,- i,-




i,- B. Short TR
i,- i,-




i,- C. Smaller voxel size
i,- i,- i,-




i,- D. Short TE
i,- i,-




i,- E. C and D?
i,- i,- i,-