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)

Mars, Mars- the  Red  Planet   After Venus, Mars  is our closest neighbo...

Mars- the  Red  Planet   After Venus, Mars  is our closest neighbour. It seems very earth-like. There are ice-caps on its poles, drifting white clouds and raging dust storms in

Examining sand with a magnifying glass, Examining sand with a magnifying gl...

Examining sand with a magnifying glass Study a small amount of sand with a magnifying glass or under the low power of a microscope if there is single available. The nearly colo

Explain ketones, Explain Ketones The ketone bodies accumulate in the bl...

Explain Ketones The ketone bodies accumulate in the blood in impaired glucose metabolism as in starvation and diabetes mellitus. The high levels of ketone bodies are excreted i

Atmosphere, Atmosphere: Atmosphere is an envelope of the most useful ga...

Atmosphere: Atmosphere is an envelope of the most useful gases that cover the planet earth. It makes our planet unique and enables life to prosper. If  the earth did not have a

Isomers having same molecular form, Isomers are different  compounds' hav...

Isomers are different  compounds' having  same  molecular form  but  different structural forms. a) Glucose and Fructose b)  Glucose and Galactose

Experiments with man in space, Experiments with man in space: We have a...

Experiments with man in space: We have already discussed  the usefulness of space  flights in Blocks 3&4. One is able to make astronomical observations from satellites; get met

Define hypothalamic control of anterior pituitary gland, Define Hypothalami...

Define Hypothalamic Control of Anterior Pituitary Gland The hypothalamus controls many of the automatic functions of the body. It secretes a series of different neurosecretory

Carbohydrates, define carbohydrates.give a brief account on classification ...

define carbohydrates.give a brief account on classification of carbohydrates.

What is an index, Question 1 What is an index? Explain physician's inde...

Question 1 What is an index? Explain physician's index with the help of examples 2 How to use the Electronic Medical Record for Prior authorization and SOAP technique 3 G

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