Magnetic Resonance Angiogram (MRA). Guide. A magnetic resonance angiogram (MRA) is a type of magnetic resonance imaging (MRI) scan that uses a magnetic field and pulses of radio wave energy to provide pictures of blood vessels inside the body.ith MRA, both the blood flow and the condition of the blood vessel walls can be seen. The test is often used to look at the blood vessels that go to the brain, kidneys, and legs. Information from an MRA can be saved and stored on a computer for further study. Photographs of selected views can also be made.
Credit: tommerton2010 CC-BY 2.0. Bath water that is too hot can cause burns to the skin. Setting a hot water thermostat at a maximum of 107 F will help to decrease the risk of hot water burns to elderly or disabled people who may have impaired temperature perception. Bathing in water that is too cold could cause a loss of body heat, resulting in hypothermia.
The temperature on your water heater should be set so that it is just hot enough to satisfy your needs. However, many home owners don't know what the standard temperatures are and set the thermostat on their water heater too high! 120 degrees is more than adequate for household chores, and especially for showers and baths.