Doctor insights on:
Blood Urea Nitrogen (Bun) Test
High BUN: You need to have more than a blood urea nitrogen (BUN) value to determine you have chronic kidney disease. You also need a creatinine (c) level, at the very least. Your BUN level is a reflection of your protein intake and your state of dehydration. If you ratio of BUN to c is > 20:1, you may have been dehydrated. Ask your doctor for more information. ...Read more
Find cause: Treat the patient, not the number. High BUN can be due to something as simple as eating a steak dinner & then running a marathon & getting dehydrated. This is good for you & need not be treated. Or it can be the sign of kidney disease, which should be treated; there are a lot of them & you need to find which one. ...Read more
Not exactly: The anesthetic itself does not raise BUN and creatinine. However, if the patient is inadequately hydrated, or has decreased blood flow to the kidneys during the operation these values can increase. Talk to your anesthesiologist if you have concerns about this. ...Read moreSee 1 more doctor answer
Are you sure?: Are you sure creatinine is 4? Or maybe .4? If it is 4 then this is a medical emergency and you need to be seen by a Nephrologist(kidney doctor specialist) as soon as possible or ED if new. If this is the case there is nothing else we can recommend over this media to make that better since multiple things might be happening. You might even need emergency dialysis. If it is 0.4 then it is normal. ...Read more
What do you suggest if i'm aged 53 my blood urea level is 32 mgs and seram creatitine is 0.8 mgs is it normal?
High BUN and pain: You should ask your question to the physician (p) who ordered the blood work on you allowing you to discover the fact you had a high bun. Your p knows your case best of all, including the level of your bun, and is in a better position to give you a meaningful answer to your question. ...Read more
Good kidneys: There is no need for concern due to low blood urea. as long as you are not emaciated or undernourished. ...Read more
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
Accurate: However, occasional errors happen rarely. All labs undergo rigorous validation/inspection by a specialized agency called clia to be licensed. All labs in the us are periodically tested for accuracy. ...Read more
Co-tango usually: The BUN is usually 10 times the creatinine. When the creatinine goes up, the BUN goes up similarly to roughly keep this proportion, in most kidney disease states. The notable exception is when the creatinine goes up say by 20% to 1.2, but the BUN goes up *5 to 50. This strongly suggests a pre-renal state, commonly dehydration. Mild elevations of BUN with normal creatinines aren't of concern. ...Read more
Hi, I want to understand what blood urea is and its range. If the levels are elevated what does it signify. Does it mean kidney problems. Thanks.
What's BUN?: BUN stands for blood urea nitrogen. Urea nitrogen is what forms when protein breaks down and it not used by itself to identify patients with kidney disease. BUN is elevated in cases of dehydration as well as kidney disease. Serum creatinine (C) is a better determinant of kidney function. If the BUN C ratio is > 20, the patient may be dehydrated. The normal range of B is 7-20 mg/dl. ...Read more
My friend's blood report says that the blood urea and creatinine are 68 and 13 resp. Which was 109 and 15 earlier.Do you consider it as an improvemnt?
Depends: Normal serum creatinine ranges from 0.8- 1.5 in many labs, however one should see the normal range in their lab report. If the creatinine doubles- eg 1 to 2, it implies 50% kidney function loss..Creatinine above 4' implies advanced kidney disease. First one must find out if this is acute kidney injury or chronic kidney disease. If it is acute, this may represent recovery. Must seek medical advice. ...Read more