Figure 2From: Continuous venovenous hemodialysis with regional citrate anticoagulation in patients with liver failure: a prospective observational studyPredictive capabilities of prothrombin time and serum lactate regarding citrate accumulation. Baseline (a) prothrombin time and (b) serum lactate showed highest areas under the curve (AUC) in receiver operating characteristic analysis, therefore having best predictive capability for citrate accumulation in terms of a total calcium/ionized calcium ratio ≥2.5. ci, confidence interval.Back to article page