MRI registry review questions (MRI safety) Questions and Answers

MRI registry review questions (MRI
safety) Questions and Answers
Adequate patient care dictates a patient having an MRI should be __________ monitored.
A. EtCO2 (End-Tidal CO2)
B. PG (peripheral gating)
C. Visually and/or verbally
D. Not at all ✔️✔️C. Visually and/or verbally


Prior to entering the MRI scan room, a patient should be screened for:
A. Surgical history/implants
B. Pregnancy
C. Prior trauma or injury
D. All of the above ✔️✔️D. All of the above


As the flip angle is doubled, the RF absorption increases by a factor of __________.
A. 1
B. 2
C. 3
D. 4 ✔️✔️D. 4


The FDA limit on time varying magnetic fields is __________.
A. 5T/sec
B. 12G/cm
C. 20T/sec
D. Once the patient experiences peripheral nerve stimulation ✔️✔️D. Once the patient
experiences peripheral nerve stimulation

, It is ___________ that every patient having an MRI be provided auditory protection in the form
______________.
A. Mandatory; lead shield
B. Recommended; cotton balls
C. Mandatory; earplugs and/or headphones
D. Recommended; earplugs and/or headphones ✔️✔️D. Recommended; earplugs and/or
headphones


A more accurate method of detecting small intra-ocular ferrous foreign bodies is:
A. Ferromagnetic Detection systems
B. Cat Scan
C. Finger sweep
D. Nuclear stress test ✔️✔️B. Cat Scan


RF heating is more of a concern in ________ sequences.
A. Gradient echo
B. Inversion recovery
C. Perfusion
D. Fast spin echo ✔️✔️D. Fast spin echo


RF heating is more of a concern in fast spin echo sequences due to the multiple echo train
lengths, leading to potential increases in tissue heating.


The general public is limited to a magnetic field of ___________?
A. 1 Gauss
B. 5 Gauss
C. 10 Gauss
D. 1 Tesla ✔️✔️B. 5 Gauss