ALB and heart failure: Univariable analysis showed that RBC (p = 0.076), HCT (p = 0.066), Haemoglobin (p = 0.009), MPV (p = 0.008), Potassium (p < 0.001), Urea (p < 0.001), Creatinine (p < 0.001), Albumin (p < 0.001), age (p < 0.001), NSAID (p = 0.152), ACEI (p = 0.201), diabetes (p = 0.017), heart failure (p = 0.001), CKD (p < 0.001) and VD (of coronary artery and heart not including acute myocardial infarction and associated complications) (p = 0.214) predicted patients diagnosed with Stage 2 or Stage 3 AKI (Table 3).