Table 3. Sensitivity and specificity of cumulative 2-hour post-FST urine output thresholds for progression to AKI-KDIGO stage 3/death.

Cumulative 2-hour urine output	Sensitivity	Specificity
≤ 100 mL	14.71	97.83
≤ 200 mL	41.18	97.83
≤ 300 mL	76.47	86.96
≤ 400 mL	88.24	63.04
≤ 500 mL	94.12	52.17

FST: Frusemide Stress Test.