What aspect of patient screening should never be assumed?

The aspect of patient screening that should never be assumed is that the patient was screened properly in a prior setting. Each MRI facility has its own protocols and methods for screening patients for safety considerations, especially concerning the presence of metallic implants, claustrophobia, or any other contraindications for MRI. Just because a patient has been screened in a different location does not guarantee that the same thoroughness or standards of safety were followed. Each patient should be re-evaluated in the context of the current facility to ensure that all relevant safety information is considered, and to confirm that the patient's situation has not changed since the prior screening. This practice helps to maintain high safety standards and minimizes risks associated with MRI procedures.