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What the causes of elevated creatinine with normal urea?and causes of increase urea with normal creatinine?

1 doctor weighed in
Dr. Ed Friedlander
Pathology

In brief: Homework?

This is more than we can handle in 400 words, you know reference ranges are set so several % of healthies fall outside, that all well-muscled men have "high creatinine" and that labs mean nothing apart from people.
This said, (1) healthy bodybuilder, people on Bactrim (sulfamethoxazole and trimethoprim) or Tagamet, others; (2) dehydration, after big steak dinner. Try to understand the basic biology instead of just lists.

In brief: Homework?

This is more than we can handle in 400 words, you know reference ranges are set so several % of healthies fall outside, that all well-muscled men have "high creatinine" and that labs mean nothing apart from people.
This said, (1) healthy bodybuilder, people on Bactrim (sulfamethoxazole and trimethoprim) or Tagamet, others; (2) dehydration, after big steak dinner. Try to understand the basic biology instead of just lists.
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