The protein/creatinine ratio (PCR) test is a medical diagnostic tool used to assess kidney function and detect possible kidney disease. The test measures the levels of protein and creatinine in a urine sample and calculates the ratio between them. High levels of protein in the urine may indicate kidney damage, as the kidneys typically filter protein out of the blood and prevent it from being excreted in urine. Creatinine is a waste product that is produced by muscle metabolism and is excreted in urine. By comparing the protein and creatinine levels, the PCR test can help to identify abnormalities in the kidneys and monitor the effectiveness of treatments for kidney disease. The PCR test is a simple and non-invasive procedure that can provide valuable information about kidney health.
