FEIA (kU/L) | ISAC (ISU) | ||
---|---|---|---|
< 0.35 | Negative | < 0.3 | Negative |
≥ 0.35 to < 0.70 | Low, class 1 |  ≥ 0.3 to < 1.0 | Low |
≥ 0.70 to < 17.5 | Moderate/high, class 2–4 | ≥ 1 to < 15 | Moderate/high |
> 17.5 | Very high, class 5–6 | ≥ 15 | Very high |