![]() |
||||||||||||||||
|
||||||||||||||||
|
BUN
BUNBlood urea nitrogen. A measure primarily of the urea level in blood. Urea is cleared by the kidney and diseases which compromises the function of the kidney will frequently lead to increased blood levels. The blood BUN level can also rise in patients who are dehydrated. RELATED TERMS-------------------------------------- Blood The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues. Urea One of the chief waste products of the body. When the body breaks down food, it uses what it needs and throws the rest away as waste. The kidneys flush the waste from the body in the form of urea, which is in the urine. Kidney One of the paired organs that excrete urine. The kidneys are bean-shaped organs (about 11 cm long, 5 cm wide, and 3 cm thick) lying on either side of the vertebral column, posterior to the peritoneum, about opposite the twelfth thoracic and first three lumbar vertebrae. SIMILAR TERMS-------------------------------------- PREVIOUS AND NEXT TERMS-------------------------------------- Bulimia susceptibility gene A gene that determines the susceptibility to developing bulimia, one disorder in the spectrum of eating disorders. There is now a substantial literature showing that bulimia is strongly familial and that the pronounced familial nature of bulimia is due largely to the additive effects of a number of genes. One bulimia susceptibility gene is known to be linked to chromosome 10p (the short arm of chromosome 10). Another susceptibility gene for bulimia may be on chromosome 14. Bullae More than one bulla, a bulla being a blister more than 5 mm (about 3/16 inch) in diameter with thin walls that is full of fluid. Bullous Characterized by blistering, such as in a second-degree burn. Bullous pemphigoid A disease characterized by tense blisters on the skin. The condition is caused by antibodies that accumulate abnormally in a layer of the skin called the basement membrane. The antigen of this autoimmune disease is localized to the hemidesmosome. Most cases of the disease are in older people but the disease can affect younger people, even babies. Bullous pemphigoid can be chronic, mild and not affect the general health or it can be severe and compromise the health of the sufferer. The diagnosis can be confirmed by a skin biopsy showing the abnormal antibodies deposited in the skin layer. Treatment is with topical cortisone creams, but especially severe cases may sometimes require high doses of cortisone-like drugs (steroids) or immune suppression drugs, such as azathoprine (Imuran). Bummed out Slang term for depression. BUN Buprenorphine A prescription medication for people addicted to heroin or other opiates that acts by relieving the symptoms of opiate withdrawal such as agitation, nausea and insomnia. Buprenorphine is more weakly addictive and has a lower risk of overdose than methadone. The effects last for about three days. Burkholderia cepacia (B. cepacia, for short.) A group of bacteria found in soil and water that are often resistant to common antibiotics. B. cepacia poses little medical risk to healthy people. However, people who have certain health problems such as a weakened immune systems or chronic lung disease, particularly cystic fibrosis (CF), are more susceptible to infection with it. Transmission of B. cepacia has been reported from contaminated solutions and medical devices as well as contaminated over-the-counter nasal spray and contaminated mouthwash. B. cepacia can also be spread to susceptible persons by person-to-person contact, contact with contaminated surfaces, and exposure to B. cepacia in the environment. Careful attention to infection control procedures like hand hygiene can help reduce the risk of transmission of this organism. Decisions on the treatment of infections with B. cepacia are best made on a case-by-case basis. Usually it can be treated with drugs called Trimethoprim-sulfamethoxazole or Meropenem. Burkitt lymphoma A type of non-Hodgkin lymphoma (NHL) that most often occurs in young people between the ages of 12 and 30, accounting for 40% to 50% of childhood NHL. The disease usually causes a rapidly growing tumor in the abdomen. Up to 90% of these tumors are in the abdomen. Other sites of involvement include the testis, sinuses, bone, lymph nodes, skin, bone marrow, and central nervous system. Burn Damage to the skin or other body parts caused by extreme heat, flame, contact with heated objects, or chemicals. Burn depth is generally categorized as first, second, or third degree. The treatment of burns depends on the depth, area, and location of the burn, as well as additional factors, such as material that may be burned onto or into the skin. Treatment options range from simply applying a cold pack to emergency treatment to skin grafts. Burn treatment "The treatment of burns depends on the depth, area and location of the burn. Burn depth is generally categorized as first, second or third degree. A first degree burn is superficial and has similar characteristics to a typical sun burn. The skin is red in color and sensation is intact. In fact, it is usually somewhat painful. Second degree burns look similar to the first degree burns; however, the damage is now severe enough to cause blistering of the skin and the pain is usually somewhat more intense. In third degree burns the damage has progressed to the point of skin death. The skin is white and without sensation." We thank you for using the Medical Glossary to search for BUN. If you have a better definition for BUN than the one presented here, please let us know by making use of the suggest a term option. This definition of BUN may be disputed by other professionals. Our attempt is to provide easy definitions on BUN and any other medical topic for the public at large.
|
|||||||||||||||
| © Medical Glossary 2005. All rights reserved. | ||||||||||||||||
| un / bn / bu / bbun / buun / bunn / vun / fun / gun / hun / nun / un / b7n / b8n / bin / bkn / bjn / bhn / byn / b6n / bub / buh / buj / bum / bu / | ||||||||||||||||