A member asked:

Im 27 m,my creatinine is 0.92 six month back now its 1.02 & bun is 7.9 to 6.1 now why creatinine increase & bun decrease is it normally they fluctuate?

A doctor has provided 1 answer

They fluctuate: Especially if you put on a some muscle. When I was lifting weights every day, my creatinine ran 1.6-1.8. BUN goes up if you eat a steak. Best wishes.

Answered 2/11/2015

3.2k views

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