1,329 calculators and references across 60 specialties, with formula confidence shown up front.
MELD (Model for End-stage Liver Disease): Explanation and clinical context The MELD score is an objective, laboratory-based model developed to predict short-term mortality in patients with advanced liver disease and to assist in prioritizing liver transplant allocation. The original formula (Kamath/Wiesner et al.) uses three laboratory inputs — serum total bilirubin (mg/dL), international normalized ratio (INR), and
MELD-HF Score (Transplant Candidacy): Explanation and Clinical Context The MELD-HF Score is a modified version of the original Model for End-stage Liver Disease (MELD) used to prioritize patients with advanced heart failure for transplant. It incorporates key laboratory parameters: serum creatinine, total bilirubin, INR, and serum sodium, reflecting renal function, hepatic function, coagulation status, and electrolyt
MELD-Lactate (for postoperative risk prediction): Explanation and clinical context The MELD-Lactate score was proposed to combine standard liver-failure predictors (the original MELD score, which uses bilirubin, INR and creatinine) with immediate postoperative lactate levels to improve early mortality prediction after major surgery. The original publication (Cardoso et al., Transplant Proceedings 2014) derived the fo
MELD-Na (Model for End-Stage Liver Disease including serum sodium): explanation and clinical context The MELD score is a widely validated, laboratory-based model to estimate short-term (90-day) mortality in patients with advanced liver disease; it uses serum bilirubin, INR, and serum creatinine as inputs. The MELD-Na score augments MELD by incorporating serum sodium as an independent predictor of mortality in cirrhos
MELD-XI (Model for End-Stage Liver Disease — excluding INR): Explanation and clinical context MELD-XI is a modification of the original MELD score intended to provide a prognostic measure of hepatorenal dysfunction when INR is unreliable (for example, in patients on anticoagulation). The commonly used formula is: MELD-XI = 5.11 × ln(total bilirubin [mg/dL]) + 11.76 × ln(serum creatinine [mg/dL]) + 9.44. To avoid math