Table 1.
IRIS stage from the International Renal Interest Society (IRIS)
| IRIS stage | Creatinine, mg/dL | Comment |
|---|---|---|
| At risk | <1.6 | Predisposing parameters |
| 1 | <1.6 | Nonazotemic, some other renal abnormalities present |
| 2 | 1.6–2.8 | Mild renal azotemia |
| 3 | 2.9–5.0 | Moderate renal azotemia |
| 4 | >5.0 | Risk of systemic clinical signs and uremic crisis |
| IRIS substage | UP/C value | Comment |
|---|---|---|
| 1 | <0.2 | Nonproteinuric |
| 2 | 0.2–0.4 | Borderline proteinuric |
| 3 | >0.4 | Proteinuric |
| IRIS substage | Systolic blood pressure, mm Hg | Comment |
|---|---|---|
| 1 | <140 | Normotensive |
| 2 | 140–159 | Prehypertensive |
| 3 | 160–179 | Hypertensive |
| 4 | ≥180 | Severely hypertensive |