A member asked:

My creatinine is 1.53 and my bun is 13. whatwould cause this.

A doctor has provided 1 answer

Are you a big guy?: Creatinine increases with muscle mass; when I was lifting weights every day, mine ran 1.6-1.7. A few meds, notably cimetadine, raise the value. And you're getting a little bit older and kidneys may not be filtering quite so well. You'd do well to watch this over the coming years.

Answered 12/10/2016

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