MRI Patient Care & MRI Safety (ARMRIT) Questions & Answers 100% Correct

Orbital screening for suspected intraocular metallic bodies should be done prior to admitting patients and personnel into an MR system: - ANSWER-at or above 0.01 Tesla strength Patients with tattooed eyeliner and / or eye makeup containing ferrous pigment should be screened and advised of what possible complication of MR imaging? - ANSWER-transient skin irritation or cutaneous swelling of the eyes and surrounding tissues Pregnant MR technologists should be restricted from entry into the electromagnetic fields of the MR scanner. (True or False) - ANSWER-false Maintaining an ambient room temperature between 65-75 degrees F, a relative humidity of 50-70%, and adequate air flow in the MR imaging room is recommended to: - ANSWER-make patients more tolerant of the radio frequency heating effects The FDA defines the specific absorption rate to be below the level of concern at: - ANSWER-less than or equal to 4 W/kg averaged over the body If the parameters selected for an imaging sequence will expose the patient to specific absorption rate levels in excess of the FDA defined level of no concern, they should never be employed on patients who are: - ANSWER-febrile The FDA safe level for exposure to radio frequency radiation during an MR procedure is defined by restricting the specific absorption rate levels. Specific absorption rate level restrictions are imposed to control the risk of: - ANSWER-systemic and / or local thermal injury The FDA defines the specific absorption rate to be at the level of concern when exposure to the radio frequency energy produces a core temperature increase in the body of: - ANSWER-1.0 degree C