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Doctor insights on: Urea Nitrogen

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Dr. Abraham Jaskiel
28 doctors shared insights

Urea Nitrogen (Overview)

Urea nitrogen abbreviated BUN is a chemical in the blood that results from the body's use of proteins and is a waste product. Urea nitrogen is processed in the liver and the kidneys and eliminated from the body in urine.


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What's blood urea nitrogen?

What's blood urea nitrogen?

Liver chemical: This is a measurement of a concentration of urea in the blood stream and is related to the health of the liver. If the liver is dysfunctional, the level - termed BUN - will rise. This is part of most blood screening tests. ...Read more

Dr. Abraham Jaskiel
28 doctors shared insights

Urea Nitrogen (Overview)

Urea nitrogen abbreviated BUN is a chemical in the blood that results from the body's use of proteins and is a waste product. Urea nitrogen is processed in the liver and the kidneys and eliminated from the body in urine.


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Blood work came back and my creatinine level is 0.49 and urea nitrogen is 7. What does this mean?

Blood work came back and my creatinine level is 0.49 and urea nitrogen is 7. What does this mean?

Nothing: Stop worrying. Reference ranges are set so that several percent of healthy folks fall outside at either end. Low BUN and low creatinine in someone who's not obviously horribly sick never mean anything. ...Read more

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What is meant by urea nitrogen and is it dangerous?

What is meant by urea nitrogen and is it dangerous?

No: Blood urea nitrogen is excreted by the kidneys and low levels are quite normal. When there is a reduced function of the blood flow to the kidney or kidney failure, the BUN rises, but it is not very specific. There are other tests to measure degrees of kidney dysfunction. ...Read more

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I have low urea nitrogen counts, blood is checked few times each month this year, always low what could be causing this? On peg/j tube last few months

I have low urea nitrogen counts, blood is checked few times each month this year, always low what could be causing this? On peg/j tube last few months

See below.: "low" BUN is really of no consequence unless accompanied by other lab abnormalities. Just a measure of the concentration of protein in your blood. This may be high as a result of dehydration or very high protein intake or low as a result of excess fluid or low protein intake. Your low number is probably related to your tf and the reason for your tf. ...Read more

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What does a urea nitrogen level of 27 indicate?

Many options: The most common reason for a marginally elevated BUN is dehydration. Blood urea nitrogen can be elevated in cases of renal function impairment. Knowing the serum creatinine can help determine that. ...Read more

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What is the definition or description of: urea nitrogen?

What is the definition or description of: urea nitrogen?

Norml waste in blood: Urea nitrogen abbreviated BUN is a chemical in the blood that results from the body's use of proteins and is a waste product. Urea nitrogen is processed in the liver and the kidneys and eliminated from the body in urine. ...Read more