Patient Preparation:  No special preparation is required

Creatinine Test is performed in combination with other tests like BUN (Blood Urea Nitrogen) and is used largely as a screening test to assess the function of kidneys.

One common reason is to monitor kidney function. Another reason is to determine how well your kidneys work by measuring how much creatinine—a waste product of muscle metabolism—is filtered through your kidneys and passed out in your urine.

If you have diabetes, high blood pressure, or heart failure, you may be at increased risk for complications from kidney disease.