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.
So keep your hot water temperature lower and youâll save more energy. The default setting on most water heaters is 60C or 140F, but the best hot water temperature is 49C or 120F â this will save you about 25% of your hot water heating costs.he default setting on most water heaters is 60C or 140F, but the best hot water temperature is 49C or 120F â this will save you about 25% of your hot water heating costs.