In this Journal feature, information about a real patient is presented in stages (boldface type) to an expert clinician, who responds to the information by sharing relevant background and reasoning ...

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 ...

You may be able to lower your creatinine levels and support kidney health by avoiding certain supplements, medications, and other substances, such as cigarettes. Share on Pinterest Tamar Dundua/Getty ...

Creatinine is a byproduct of muscle metabolism and under normal circumstances, the kidney's filter creatinine from the blood and pass it out of the body in the form of urine. If the kidney function ...

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 ...