Doctor insights on:
Why Fast Before A Bun Test
My blood test showed "slightly elevated" BUN (25mg). However, I eat a high protein diet and my Dr did not tell me to fast or avoid eating protein before the test. Are these results valid?
Rise in BUN and Cr compared lab tests 2 months ago and now,from BUN 13 and Cr 0.75 to BUN19 and Cr 1.1.Normal?day before stress test done w/o contrast
Unlikely: If you didnt receive any contrast, it is unlikely that your creatinine would be affected by the stress test. There is definitely some normal variation but if you are concerned you might want to get another blood test in about a week. However, if you have any symptoms like decreased urine, tiredness, weakness or a change in your health you should see your doctor immediately. ...Read more
Blood Urea Nitrogen: It is a test which identifies the breakdown products of urea in your blood. Urea is itself a breakdown product of proteins so that the BUN is an indirect measure of protein metabolism. BUN is elevated in kidney dysfunction, fever, increased catabolism, high protein diet and intestinal bleeding. ...Read moreSee 1 more doctor answer
What can cause to have bun/creatinin ratio elevated. My test resul bun 18 norma 6-20, creatinin 0.63 norma0.57-1 and bun/creat ratio 29 norm 35-155?
BUN of 9: Your BUN of 9 is normal and it is also a reflection of your protein intake. Your serum creatinine is a much better guide to help assess your kidney function. If it is not elevated, you probably have reasonable kidney function. Serum creatinine is dependent on age, muscle mass, sex and race. ...Read moreSee 1 more doctor answer
Recent blood test showed my bun at 18 and my creative at 1.02 both on high end of range, should I be worried ?
No: If you are a muscular male, these results would be right in the normal range. As it is the results are within normal limits. However, all lab results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. See this site for more info. http://www.mayoclinic.com/health/creatinine/my00144. ...Read more
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