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.
Stages of Pressure Sores. Pressure sores (bed sores) are an injury to the skin and underlying tissue. They can range from mild reddening of the skin to severe tissue damage-and sometimes infection-that extends into muscle and bone. Stage 1 sores are not open wounds. The skin may be painful, but it has no breaks or tears.