kidney dysfunction: Creatinine is a byproduct of muscle metabolism and is excreted by the kidneys. High serum creatinine generally indicate kidney damage.High levels can be seen in muscle damage, people who consume creatine supplements. BUN is also a byproduct of protein metabolism which is excreted by the kidneys.If serum BUN and creatinine are elevated, it suggests that there may be kidney dysfunction.
Answered 12/8/2017
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