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Urine Albumin-to-Creatinine Ratio · KDIGO 2024 albuminuria staging · CKD risk context
Enter Urine Values
Most US labs report in mg/g (also written as mg albumin per g creatinine).
KDIGO 2024 Albuminuria Stages
| Stage | UACR (mg/g) | UACR (mg/mmol) | Category | CKD Risk |
|---|---|---|---|---|
| A1 | < 30 | < 3 | Normal to mildly increased | Low added risk |
| A2 | 30–299 | 3–29 | Moderately increased (Microalbuminuria) | Moderately increased risk |
| A3 | ≥ 300 | ≥ 30 | Severely increased (Macroalbuminuria) | High to very high risk |
Note: UACR from a first-morning void is preferred. False positives can occur with recent vigorous exercise, fever, dehydration, or urinary infection. Confirm with 2 additional samples over 3 months if unexpectedly elevated. Source: KDIGO 2024 CKD Guidelines.