A homocysteine blood test is done to: 1  Help identify vitamin B12 deficiency or folic acid deficiency. 2  Help identify a rare inherited disease (homocystinuria) that causes a deficiency of one of several enzymes needed to convert food to energy.  Help determine a cause for otherwise unexplained blood clots.
Category : Causes of Bed Sores. Common Causes of Bed Sores. Bedsores are damaged skin caused by a lack of proper blood flow to the skin because of pressure. The bedsore can occur in individuals at any age when bedridden, in a chair or wheelchair without the ability to reposition themselves.
Pressure Sores (Bedsores) Facts. Pressure sores are areas where unrelieved pressure over a defined area results in local ischemia and eventually can lead to deep tissue damage and necrosis. The affected areas of skin usually cover a bony prominence (for example, skin over the hips, sacrum, or heels).