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.
BLEM definition / BLEM means? The Definition of BLEM is given above so check it out related information. What is the meaning of BLEM? The meaning of the BLEM is also explained earlier. Till now you might have got some idea about the acronym, abbreviation or meaning of BLEM. What does BLEM mean? is explained earlier. You might also like some similar terms related to BLEM to know more about it.