Explain the blood urea nitrogen (bun), Science

Assignment Help:

Explain the Blood Urea Nitrogen (BUN)

It is a test that measures the amount of urea nitrogen in the blood. Urea is formed in the liver as an end product of protein metabolism and is carried to the kidneys for excretion. During digestion, protein is broken down to amino acids. Amino acids contain nitrogen, which is removed as ammonium ion), while the rest of the molecule is used to produce energy or other substances needed by the cell. The ammonia combines with other small molecules to produce urea.

The urea makes its way into the blood and is ultimately eliminated in the urine by the kidneys. Nearly all kidney diseases cause an inadequate excretion of urea, elevating BUN levels in the blood. Other causes of high BUN levels include dehydration, gastrointestinal bleeding, steroid treatment and use of many other drugs compete with urea for elimination by the kidneys. The normal values for the test are: 7 to 20 mg/dl and the abnormal results indicate many diseases.


Related Discussions:- Explain the blood urea nitrogen (bun)

What are the properties of riboflavin, Properties Some of  the importan...

Properties Some of  the important physico-chemical  characteristics of riboflavin are as follows: a)  Riboflavin forms needle shaped orange crystals. b)  It is sparingl

Aids, AIDS: You have learnt about infectious diseases. For centuries, d...

AIDS: You have learnt about infectious diseases. For centuries, death from infectious diseases was common and whole populations were often affected.  One of the remarkable achi

Determine the agronomic factors of fertilizers, Determine the Agronomic fac...

Determine the Agronomic factors of fertilizers These factors are key to efficient use of fertilizers for crop production and include fertilizer responsiveness of crops, spacing

Explain pneumothorax - histotoxic hypoxia, Explain Pneumothorax - Histotoxi...

Explain Pneumothorax - Histotoxic Hypoxia It is a collection of air or gas in the chest or pleural space that causes a part or all of a lung to collapse. Due to the rupture of

Rejection of heliocentrism, Rejection of Heliocentrism: This happened...

Rejection of Heliocentrism: This happened  in the year  1918 when the astronomer Harlow Shapley (1885-1972) first surveyed the size and shape of  the Milky Way Galaxy. He  sh

Infectious diseases, Infectious diseases: Some of you may have heard ...

Infectious diseases: Some of you may have heard about the great bubonic plague, a fatal disease of the blood, spread by fleas and respiratory  secretions. It occurred in epid

A floating experiment with different kinds of wood, A floating experiment w...

A floating experiment with different kinds of wood Secure a cork, and pieces of wood like as maple, mahogany and ebony. Place them in a pan of water and notice how every one be

Explain the hyperpnoea, Explain the Hyperpnoea It is a term for an incr...

Explain the Hyperpnoea It is a term for an increase in the rate and depth of respiration. The cause of hyperpnoea may be voluntary or due to impulses from the hypothalamus.

Explain functions of gastric juice - enzyme action, Explain Functions of Ga...

Explain Functions of Gastric Juice - Enzyme action Enzyme action: Pepsin begins the chemical digestion of proteins. It converts proteins to peptones. The enzyme rennin present

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd