Your doctor may order a creatinine test to assess the health of your kidneys. A high creatinine level could be a sign of an issue such as chronic kidney disease (CKD). Creatinine is a waste product ...

Creatinine is essentially a metabolite of creatine phosphate, a compound that acts as a source of energy in muscle. In other words, creatinine is a waste product generated from the normal wear and ...

A urine protein-creatinine ratio (UPCR) test looks for high levels of protein in your urine, which can happen in kidney disease. Results that are higher than average may be a sign of a kidney-related ...