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Doctor insights on: How Do You Lower The Bun Level In Blood

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Recently got a blood test and had a bun level of 6.0 mg/dl and b/c ratio is 6.6. They said they were low. Should i be concerned?

Recently got a blood test and had a bun level of 6.0 mg/dl and b/c ratio is 6.6. They said they were low. Should i be concerned?

BUN of 5: Your BUN of 6 mg/dl is low. It is important to know that its level varies from lab to lab. And it is related to your protein intake and your state of hydration. You did not give your creatinine (c) level. Your c is dependent on your sex, age, weight and age. If the physician (p) who ordered the test is not worried, as he did not call you, do not worry about it. If you need reassurance, call the p. ...Read more

Dr. Alok Agrawal
255 doctors shared insights

Blood Urea Nitrogen (Definition)

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


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I have a high blood Bun level of 23 w/range 10-20 and a low blood Creatinine level of 0.65 w/range of 0.70-1.20. I'm a little confused as to meaning?

I have a high blood Bun level of 23 w/range 10-20 and a low blood Creatinine level of 0.65 w/range of 0.70-1.20. I'm a little confused as to   meaning?

Dehydration: Were you dehydrated when the blood was drawn. If you were asked to come fasting, you may not have taken enough water. Dehydration affects BUN more than it affects creatinine. Since creatinine is normal, I would not worry about BUN. At your next test, make sure you drink water in the morning before the blood is drawn. ...Read more

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I am 49 year old male in good general . A recent blood test showed bun level at 27 and creatinine level at 1.4. Should i be concerned? What are possible causes?

I am 49  year old male in good general .  A recent blood test showed bun level at 27 and creatinine level at 1.4. Should i be concerned? What are possible causes?

Dehydration?: Sounds like dehydration (if no kidney disease) as we grow younger, we cannot rely on our thirst, and have to drink by the clock... Our osmotic receptors get old before we do. ...Read more

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My bun level is 16mg/dl and my creatinine 0.62 mg/dl normals but bun/creatinine is 26.1 should I be worried? I was fasting. Other blood & urine ok!

Nope: The ratio is high due to a relative increase in the BUN with a perfectly normal cr. You may have been a bit dehydrated with the fast. No issue here. ...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 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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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