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Doctor insights on: Is A Low Blood Urea Nitrogen Level Dangerous

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What is the most likely reason for having an abnormally high blood urea nitrogen level?

What is the most likely reason for having an abnormally high blood urea nitrogen level?

See below: High urea level can reflect dehydration , other causes include high protein intake, and decreased kidney function. ...Read more

Dr. Steven Griggs
34 doctors shared insights

Urea Nitrogen (Definition)

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 ...Read more


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What does it indicate if you have a high level of blood urea nitrogen?

What does it indicate if you have a high level of blood urea nitrogen?

Kidney issue: In general, a high BUN is indicative of an issue with kidney function or overall dehydration. All blood tests need to be interpreted in context. ...Read more

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Is it possible to have high creatinine, high blood urea nitrogen and high potassium levels simultaneously?

Is it possible to have high creatinine, high blood urea nitrogen and high potassium levels simultaneously?

Absolutely yes: This is exactly what is seen with kidney (renal) failure. I am not making a diagnosis on this information alone. I can only advise strongly that anyone with elevation in bun, cr and potassium, as listed above, should see his/her physician immediately. ...Read more

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Recently blood urea nitrogen and serum creatinine levels what can I do..?

Recently blood urea nitrogen and serum creatinine levels what can I do..?

kidney dysfunction: Creatinine is a byproduct of muscle metabolism and is excreted by the kidneys. High serum creatinine generally indicate kidney damage.High levels can be seen in muscle damage, people who consume creatine supplements. BUN is also a byproduct of protein metabolism which is excreted by the kidneys.If serum BUN and creatinine are elevated, it suggests that there may be kidney dysfunction. ...Read more

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I had a cmp done at doctors . Everything was normal except anion gap At 3. My blood urea nitrogen at 21 . ( doc said cuz I fasted).. Why is this low?

I had a cmp done at doctors . Everything was normal except  anion gap At 3. My blood urea nitrogen at 21 . ( doc said cuz I fasted).. Why is this low?

First things 1st.: Why did you have the test? No test should be interpreted in a vacuum. Most of the time the abnormality described is pretty meaningless. But attempting to answer your question requires we know about your medical history. ...Read more

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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

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What is the definition or description of: blood urea nitrogen?

What is the definition or description of: blood urea nitrogen?

Metabolic waste : It's level helps evaluate renal function elevation can mean poor renal function or GI bleeding. ...Read more

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Can you explain what 12.86mg/dl bun (blood urea nitrogen) and 1.34 mg/dl creatinine mean?

Can you explain what 12.86mg/dl bun (blood urea nitrogen) and 1.34 mg/dl creatinine mean?

Normal: Seems normal- however could be slightly abnormal if this is a 90 yr old emaciated female or a very small child. ...Read more

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What does these results mean? 27 mg/dl bun (blood urea nitrogen) and 1.3 mg/dl creatinine?

What does these results mean? 27 mg/dl bun (blood urea nitrogen) and 1.3 mg/dl creatinine?

Sounds fine: They are a little bit high if you're a female, and your kidneys may not be working quite so well as a healthy young person's, but if you are a muscular man eating a lot of protein , they're fine. ...Read more

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I was just wondering why does blood urea nitrogen bun decreases hepatic failure ?

I was just wondering why does blood urea nitrogen bun decreases hepatic failure ?

BUN liver: Urea is produced thru the ornithine cycle in the liver thus BUN levels reflect functioning of the liver/kidneys. ...Read more

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I am a 53 year old male, recently got medically tested. Blood urea nitrogen is 51.24mg/dl ; creatinine serum is 5.46mg%. What is the significance ?

I am a 53 year old male, recently got medically tested. Blood urea nitrogen is 51.24mg/dl ; creatinine serum is 5.46mg%. What is the significance ?

Either acute: Or chronic renal insufficiency or very significant kidney problems which need to be addressed asap by a nephrologist. A cause needs to be found if possible and reversed or treated. All the best. ...Read more

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Please explain why does blood urea nitrogen bun decrease in hepatic failure ?

Please explain why does blood urea nitrogen bun decrease in hepatic failure ?

Urea cycle stops: The ammonia that the body generates during metabolism doesn't get detoxified by being turned into urea. ...Read more

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Can a patient with ongoing blood transfusion be extracted with blood to be tested for Blood Urea Nitrogen?

Of course: And results are basically valid. BUN is unlikely to be much elevated in infused blood as it's taken from healthy folks. ...Read more

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What does a 27 mg/dl bun(blood urea nitrogen) and 1.3 mg/dl creatinine mean? I'm 6 weeks pregnant.

I'd be concerned: Your physician will look for some cause of your kidney function being imparied. One common cause is simply using NSAIDS. Expect a proper workup and ask to have it explained to you. ...Read more

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Dr. Ellen Bondar
256 doctors shared insights

Blood Urea Nitrogen (Definition)

It's level helps evaluate renal function elevation can mean poor renal ...Read more