Mrso - Radio Frequency - Module 4 Exam Answers

Why patient doesn't report discomfort when being burned {Ans: burns are deep tissue, and pain sensors are located on surface of the body}Operating mode outputs refer to: {Ans: -Switched Gradients (db/dt) -radiofrequency field (B1)}Is muscle or fat more conductive? {Ans: muscle}If patient is in contact with the bore wall during radiofrequency transmission, significant electrical currents can be induced within the tissues. This can result in {Ans: DEEP tissue burns (can be delayed for days or weeks)}Published FDA Criteria for Significant Risk states {Ans: whole body SAR less than or equal to 4 W/kg over 15 min or less does not represent a significant risk}Who provides standards for SAR that must be followed by manufacturers? {Ans: IEC (International Electrotechnical Commission)}