MRI Physics And Clinical Applications Practice Exam

Per the ACR, a pregnant patient may safely undergo MRI at which stage of gestation?

Only the second trimester Any stage Only the third trimester Never — MRI is contraindicated in pregnancy

Correct Answer:

Any stage

Explanation:

MRI does not use ionizing radiation, so there isn’t a gestational stage that inherently makes it unsafe. The main factor is clinical necessity and applying standard safety precautions. Therefore, MRI can be performed at any stage of pregnancy when it’s clearly indicated, with the exam planned to minimize any risk—using non-contrast imaging when possible and adhering to safety limits for SAR and acoustic exposure. If contrast (gadolinium) is considered, it’s generally avoided in pregnancy because of potential fetal risks, and would only be used if the diagnostic information is essential and benefits clearly outweigh risks, with informed consent and the lowest reasonable dose.

Access more questions from this quiz

Continue to MRI Physics and Clinical Applications Practice Exam for more practice questions and the full quiz experience.

Access More Questions