Magnetic Resonance Imaging (MRI) Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the MRI Test with our comprehensive study materials. Utilize flashcards and multiple choice questions with hints and explanations to enhance your readiness. Begin your path to success today!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

The 2003 FDA revision on RF absorption limits the absorption for the head to what maximum?

2.0W/kg for 10 minutes
3.0W/kg for 10 minutes
4.0W/kg for 10 minutes
1.5W/kg for 10 minutes

The correct answer is: 3.0W/kg for 10 minutes

The 2003 FDA revision on radiofrequency (RF) absorption established a threshold to ensure patient safety during MRI procedures. The maximum allowable specific absorption rate (SAR) for the head is set at 3.0 watts per kilogram (W/kg) for 10 minutes. This regulation was implemented to mitigate the risk of excessive heating of body tissues during MRI scans, especially for sensitive areas like the head. Maintaining SAR within this limit helps prevent thermal injuries while ensuring that MRI can still produce high-quality images without compromising patient safety. Understanding these limits is crucial for MRI technologists and radiologists when planning and conducting scans, as adherence to these guidelines is essential for patient protection while achieving diagnostic effectiveness.