A common blood test, the blood urea nitrogen (BUN) test reveals important information about how well your kidneys and liver are working. A BUN test measures the amount of urea nitrogen that's in your blood. 1  Your liver produces ammonia â which contains nitrogen â after it breaks down proteins used by your body's cells.  The nitrogen combines with other elements, such as carbon, hydrogen and oxygen, to form urea, which is a chemical waste product.
Top Definition. Blad. Blad/blud/blood, blad being the london pronounciation of the word, is not a ''chav'' word. It actually comes from jamaica and comes from the meaning of brother, of part of ones blood line, saying that someone is close to them.op Definition. Blad. Blad/blud/blood, blad being the london pronounciation of the word, is not a ''chav'' word. It actually comes from jamaica and comes from the meaning of brother, of part of ones blood line, saying that someone is close to them.
scottietwenty3. 1 vote Vote for this answer. Blighty is an English slang term for Britain, deriving from the Hindustani word vilayati (vilÃ¢yatÃ®) (à¤µà¤¿à¤²à¤¾à¤¯à¤¤à¥ pronounced bilati bilÃ¢ti In many indian dialects) and languages, meaning foreign and is itself derived From/The arabic urdu, word wilayat meaning a kingdom. or ministry