Unexplained weight loss is defined as the unintentional loss of at least 10 pounds or 5 percent of body weight over a period of 6 to 12 months. This would be equivalent to a 200-pound man losing 10 pounds or a 130-pound woman losing six to seven pounds.
What It Is. Magnetic resonance imaging (MRI) of the brain is a safe and painless test that uses a magnetic field and radio waves to produce detailed images of the brain and the brain stem. An MRI differs from a CAT scan (also called a CT scan or a computed axial tomography scan) because it does not use radiation.
Municipalfirefighters should not be allowed intothe room until the MRI is proven to bede-energized or they are MRI-safe âwithmagnetic equipment and clothingremoved. CONTRAST AGENTS Contrast agents, sometimes injected intopatients as part of the MRI procedure,pose a distinct set of risks.naddition, monitoring patient position in the MRI machine andp r ox im ty s n ewa lh u db cin patient care protocol .The most common sources of thermalexposure tend to be looped/un-loopedmedical equipment leads, MRI accessories ,and sensors.