Creatinine urine test
Creatinine is a chemical waste product produced by muscle metabolism. When your kidneys are functioning normally, they filter creatinine and other waste products out of your blood. These waste products are removed from your body through urination.
A creatinine urine test measures the amount of creatinine in your urine. The test can help your doctor evaluate how well your kidneys are functioning. This is useful for diagnosing or ruling out kidney disease and other conditions affecting the kidneys.
There are natural variations in creatinine output due to age and body mass. The more muscular you are, the higher your range will be. It’s also important to note that not all laboratories use the same values. Results are dependent on the proper collection of your urine sample.
Normal urine creatinine values generally range from 500 to 2,000 mg per day. Creatinine values that fall outside the normal range may be an indication of:
- kidney disease
- kidney infection
- kidney failure
- urinary tract obstruction, such as kidney stones
- late-stage muscular dystrophy, which is a group of diseases that damage and weaken your muscles over time
- myasthenia gravis, which is an autoimmune disease that causes muscle weakness
Abnormal values can also occur in people who have diabetes or a diet that’s high in meat or other proteins.
- Sample of urine
- We perform the test daily