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.
Bedbugs are a common cause of night-time itching. These microscopic, blood-feeding insects infest mattresses, laying their eggs and feeding off dead skin cells. They are active at night, and feed on their human hosts, leaving behind skin lesions which look like mosquito bites. The scabies rash is another cause for itching during the night. Scabies are a parasite that burrow in the skin and lay eggs which then hatch and continue the cycle. They are very contagious and are invisible. Treatment is with a pesticide cream through perscription such as elimite that contains permethrin.