Kidney Function Test lab tests in RequestATest Lab Test Test Cost Albumin (ALB) Blood Test $34.00 BUN Blood Test $34.00 Creatinine Clearance (24 Hour Urine and Blood) Test $64.00 Ammonia Blood (Plasma) Test - Ammonia Blood Test $49.00 Microalbumin (Albumin) Urine Test - Microalbumin Urine Test $39.00 Cystatin C Blood Test $119.00 Renal (Kidney) Function Panel - Renal Function Panel $29.00 Creatinine Blood Test - Serum Creatinine Test $34.00 Albumin (Microalbumin):Creatinine Ratio Urine Test $49.00 Creatinine, 24-Hour Urine Test $49.00 Albumin (ALB) Blood Test - Albumin Blood Test $29.00 Albumin (Microalbumin):Creatinine Ratio Urine Test $59.00 Phosphorus Blood Test $34.00 Blood Urea Nitrogen (BUN) Test $34.00 Phosphorus Blood Test - Phosphate test $34.00 Microalbumin (Albumin) 24-Hour Urine Test $49.00