You should never scan a patient with a bullet or pellet/BB.

The assertion that you should never scan a patient with a bullet or pellet/BB is true. The presence of metallic objects such as bullets or pellets poses significant safety concerns in an MRI environment. These materials can be ferromagnetic, meaning they are attracted to magnetic fields, which can lead to the projectile being pulled toward the magnet, potentially causing injury to the patient or creating additional complications.

Furthermore, metallic objects can cause artifacts in the imaging results, compromising the quality of the scan. In certain situations and depending on the patient's overall health and the specific MRI scanner's capabilities, it may still be possible to obtain images; however, thorough evaluation and consideration of risks versus benefits must occur prior to proceeding, and consultation with radiologists or expert personnel in MRI safety is critical.

Thus, the correct answer is that you should never scan a patient with a bullet or pellet/BB, highlighting the importance of patient safety and the adherence to established MRI safety protocols.