DEAR DR. ROACH: I am a 73-year-old female. A recent blood test returned an eGFR (estimated glomerular filtration rate) of 59. My physician’s nurse told me that the test was normal. When I asked her ...
Creatinine is a natural byproduct of muscle activity, released into the bloodstream as we move and stay active. Under normal circumstances, healthy kidneys efficiently filter it out, keeping levels ...
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