Kidney Function Test lab tests in Ulta Lab Tests Lab Test Test Cost Microalbumin, Random Urine (without Creatinine) - Microalbumin Urine Test $26.00 Microalbumin, Timed Urine $26.00 Phosphate (as Phosphorus) Most Popular - Phosphate test $19.00 Creatinine Most Popular - Serum Creatinine Test $15.00 Creatinine, Random Urine Most Popular $27.00 Creatinine Clearance Most Popular $36.00 Ammonia, Plasma - Ammonia Blood Test $44.00 Microalbumin, Random Urine with Creatinine Most Popular $42.00 Microalbumin/Creatinine Ratio, Timed Urine $144.00 Oxalic Acid, 24-Hour Urine without Creatinine $88.00 StoneRisk Diagnostic Profile - Urine Test for Kidney Stones $798.00 BUN/Creatinine Ratio $18.00 Microalbumin, 24-Hour Urine with Creatinine $48.00 Albumin (ALB) - Albumin Blood Test $15.00 Renal Function Panel Most Popular - Renal Function Panel $20.00 Urea Nitrogen (BUN) Most Popular $18.00 Microalbumin, 24-Hour Urine without Creatinine $26.00 Creatinine, 24-Hour Urine $27.00