The addition of albumin (5 mg/mL), glucose (10 mg/mL), calcium chloride (3 mg/mL) or acetone (7.9 mg/mL) to simulate significant albuminuria, glucosuria, hypercalciuria or ketonuria resulted in no significant change in the measured urinary sGAG concentration (Figure 2A). Here, ALB is linked to Ketonuria.