Dear Dr. Roach: I have a friend who’s 28 with “really low” urine pH (I don’t know how low). Apparently, it is due to constant dehydration and drinking coffee all day long, to the point that the doctor ...

Creatinine levels can be measured through a urine test. Abnormal levels of creatinine in a person’s urine can indicate medical issues, such as kidney infection, kidney stones, and diabetes. Creatinine ...