Urine albumin measurements over three years show 15, 56, and 156 mg/24 h. What is the likely interpretation?

• A. These levels are normal and no follow-up is necessary.
• B. These levels suggest that kidney function is compromised and follow-up is necessary.
• C. As these values are not greater than 300 mg/24 h, the patient is not likely to have compromised kidney function.
• D. An additional urinary albumin test is required in Year 4 to verify diminishing kidney function.

Answer: (B)

Persistent albumin in the urine over time signals kidney involvement. Normal urine albumin excretion is typically under 30 mg per 24 hours. Microalbuminuria, indicating early kidney damage, falls roughly in the 30–300 mg per 24 hours range; values above this raise concern for more significant kidney stress. Seeing 15 mg/24 h initially, then 56 mg/24 h, and finally 156 mg/24 h shows a clear upward trend, moving from normal to abnormal and continuing to rise. This progression suggests that kidney function is being affected and that follow-up is important to assess renal status, identify contributing factors (like diabetes or hypertension), and guide management to slow or prevent further damage. The key idea is that persistent, rising albuminuria is a warning sign of renal involvement, not a reason to dismiss the finding, which is why follow-up is recommended.