Kidney Function Test lab tests in Personalabs Lab Test Test Cost Phosphorus Blood Test - Phosphate test $47.00 Creatinine Blood Test - Serum Creatinine Test $47.00 Urea Nitrogen Blood Test $47.00 Renal Function Panel Blood Test - Renal Function Panel $50.00 Creatinine, 24-Hour Urine Test $47.00 Microalbumin, Random Urine Test (without Creatinine) - Microalbumin Urine Test $56.00 Albumin - Albumin Blood Test $47.00 Ammonia Blood Test - Ammonia Blood Test $64.00