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 is learning, QUESTION 1 ‘First Impression is the last impression.'...

QUESTION 1 ‘First Impression is the last impression.' Discuss this very often heard quote referring to the theory of Solomon Asch. Support your answer with examples from your o

Explain sneezing reflex actions - respiratory process, Explain Sneezing Ref...

Explain Sneezing Reflex Actions - Respiratory Process This reflex is an involuntary, sudden, violent and audible expulsion of air through the mouth and nose. Usually irritation

FST -01, Describe the factors which decide the broad area of Scientific act...

Describe the factors which decide the broad area of Scientific activity?

Deductive logic, Deductive logic: Deductive logic may be  considered as...

Deductive logic: Deductive logic may be  considered as the opposite of  induction. Here the reasoning is more direct. If  we know a statement about a whole class of objects, ph

What are the three major types of rocks, What are the three major types of ...

What are the three major types of rocks? Ans) The three kinds of rocks are as follows: 1) Igneous rock (from volcanoes etc) 2) Sedimentary rock (Dead Sea creatures, time

Define the term - soil protozoa, Define the term - Soil protozoa These ...

Define the term - Soil protozoa These are unicellular but larger than bacteria, the size varying from a few microns to a few centimeters. The protozoa exist in all aerable soil

Explain the hyperparathyroidism, Explain the Hyperparathyroidism Hyperp...

Explain the Hyperparathyroidism Hyperparathyroidism may occur due to a tumour in one or more of the parathyroid glands. In this condition, the calcium level of the blood increa

Define the term blood, Define the term Blood “The ancients believed th...

Define the term Blood “The ancients believed that blood was the seat of the emotions".  Blood, a body fluid, has been correctly termed as an elixir of life. We all have blood

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