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Specialty Index: Critical Care

  Medical Equations

A-a Gradient
a/A Ratio
Allowable Blood Loss
Anion Gap in Hypoalbumin States
Anion Gap
Base Excess Determination
Blood Ethanol Concentration Estimation
Burn Injury Fluid Resuscitation, Adult (Parkland crystalloid estimate)
Calcium Correction in Hypoalbuminemia (SI units)
Calcium Correction in Hypoalbuminemia
Cardiac Output MultiCalc
Cardiac Output Using Oxygen Saturation Data Only
Cardiac Output
Endotracheal tube size for children (Age 1 to 8 years)
Estimated Blood Volume
Fractional Excretion of Calcium (FECa)
Fractional Excretion of Sodium (FENa)
Fractional Excretion of Sodium (FENa, SI units)
Glomerular Filtration Rate Estimation (eGFR) by Quadratic Equation
Gravity Flow Rate Calculator
Injury Severity Score (ISS)
Maintenance fluid calculation for children based on daily fluid requirements
Maintenance Fluid Calculation for Children Based on Hourly Fluid Requirements
Mean Arterial Pressure (MAP) in Adults and Children (conventional or SI units)
MELD 3.0 Score EXCLUDING Serum Albumin
MELD 3.0 Score Including Serum Albumin
MELD Score for End-Stage Liver Disease (NOT appropriate for patients under the age of 12) (SI units)
MELD Score for End-Stage Liver Disease (NOT appropriate for patients under the age of 12)
MELDNa Score (2008) for End-Stage Liver Disease (NOT appropriate for patients under the age of 12) (SI units)
MELDNa Score (2008) for End-Stage Liver Disease (NOT appropriate for patients under the age of 12)
MELDNa Score (2016) (SI units)
MELDNa Score (2016)
Osmolal Gap Calculator (SI units)
Osmolal Gap Calculator
Osmolality Estimator (serum)
Oxygen Saturation Estimate from PO2
Oxygenation index in neonates, children, and adults
paO2 / FIO2 Ratio (for MODS Calculation)
PELD Score for End-Stage Liver Disease in patients less than 12 years old (original)
PELD-Cr Score for End-stage Liver Disease in patients less than 12 years old (2023 update)
Pneumothorax Degree of Collapse
Predicted body weight and tidal volume in adults
Pressure Adjusted Heart Rate (For MODS calculation)
Pulse Pressure Variation (percentage)
QT Interval Correction (EKG, Multi-Equation)
Right to Left Shunt Fraction Qs/Qt
ROX Index (Respiratory rate--oxygenation)
Serum Sodium Concentration Change Considering Infused and Excreted Cations
Sodium Concentration Correction for Hyperglycemia (Emmett 2013)(conventional or SI units)
Sodium Correction in Hyperglycemia (Hillier 1999)
Sodium Correction in Hyperglycemia (Katz 1973)
Systolic Pressure Variation (percentage)
Ventilation Index
Water Deficit in Hypernatremia
Winters' Formula for Expected PCO2

  Clinical Criteria

Acetaminophen (Paracetamol) Toxicity Assessment (Original, 1975)
Acetaminophen (Paracetamol) Toxicity Assessment (Revised 2023)
APACHE II Scoring System by Diagnosis
APACHE II Scoring System
Bacterial Meningitis Score for Children
BAP-65 prediction of in-hospital mortality and need for mechanical ventilation in COPD
Bedside Index of Severity in Acute Pancreatitis (BISAP) Score
BODE Index for COPD survival prediction in adults
CIP (Critical Illness Prediction) Score
CIWA-Ar Clinical Institute Withdrawal Assessment for Alcohol scale
Clinical Grading to Predict Malignant Hyperthermia
Clinical Opioid Withdrawal Scale (COWS) for adults and adolescents
Clinical Pulmonary Infection Score (CPIS)
Community-acquired pneumonia severity index (PSI) for adults
Coronary Artery Disease Risk Clinical Assessment (Duke study)
COVID-19 AID Score
COVID-19 and the Prognostic Nutrition Index (PNI)
COVID-19 and the Systemic Immune-Inflammation Index (SII)
COVID-19 CHOD Score for Estimating Risk of Inpatient Pulmonary Embolism
COVID-19 Critical Illness Predictor (Liang 5/12/2020)
COVID-19 Criticality Prediction (Yan 3/3/2020)
COVID-19 FAPIC Score for Vaccine Induced Thrombotic Thrombocytopenia Syndrome
COVID-19 Inflammation Score for Disease Severity
COVID-19 Kuwait Progression Score
COVID-19 MMCD Score to Predict Need for Dialysis
COVID-19 Mortality Risk Estimation (Zhou 3/11/2020)
COVID-19 Obesity and Diabetes Score
COVID-19 Quick Severity Index (qCSI)
COVID-19 RISE UP Score for Emergency Department Patients 65 Years Old and Older
COVID-19 SCOPE Score to Predict Severe Respiratory Failure
COVID-19 Severity by M-CHA(2)DS(2)-VASc Score
COVID-19 Severity by Shock Index and Modified Shock Index
COVID-19 Symptom-Based C19 Rule for Diagnosis
CURB Pneumonia Severity Score
CURB-65 Pneumonia Severity Score
DIC Score
ELBW Infant Prognosis Prediction
Embolic Risk (ER) French Score in Infective Endocarditis
Endocarditis Diagnostic Criteria -- Duke Criteria
Endocarditis Diagnostic Criteria -- Modified Duke Criteria
EuroSCORE for Cardiac Surgery Risk Assessment (1999 additive version)
Geneva Risk Score for Venous Thromboembolism in Hospitalized Medical Patients
Glasgow Alcoholic Hepatitis Score
Glasgow Blatchford Score for Gastrointestinal Bleeding
Glasgow Coma Scale in Adults
GRACE 2.0 Score for Acute Coronary Syndrome Prognosis (non-linear model 2014)
GRACE Score for Acute Coronary Syndrome Prognosis (2004)
GRACE Score for Acute Coronary Syndrome Prognosis (linear model 2003)
Gupta postoperative respiratory failure risk in adults
Heart Failure Diagnosis
Heparin Induced Thrombocytopenia 4 Ts Score
ICE Score: Immune Effector Cell-Associated Encephalopathy
Intracerebral Hemorrhage Score
Intracranial Bleeding Risk from Thrombolytic Therapy of MI
Lower GI Bleeding and Risk of Severe Bleeding
Mangled Extremity Severity Score (MESS score)
MEDS Score: Mortality in ER Sepsis
MMRC: Modified Medical Research Council Scale for Dyspnea
Modified Fisher Scale for Subarachnoid Hemorrhage
Modified Wells score for deep vein thrombosis (DVT)
Mortality Probability Admission Model (MPM0-III) for critical illness in adults
Mortality risk in postoperative adult patients with cirrhosis
MuLBSTA Score to Predict Mortality in Viral Pneumonia
Multinational Association for Supportive Care in Cancer (MASCC) risk index for patients with neutropenic fever
Multiple Organ Dysfunction Score (MODS)
National Early Warning Score 2 (NEWS2)
Newborn Hyperbilirubinemia Assessment (original, 2004)
Newborn hyperbilirubinemia assessment for infants born at 35 weeks or more gestation (2022 update)
NIH Stroke Score
Non Q Wave Myocardial Infarction Prediction
Ottawa Heart Failure Risk Scale
Ottawa Subarachnoid Hemorrhage (SAH) Rule
Padua Score for Assessing Venous Thromboembolism Risk in Hospitalized Patients
Palliative Prognostic Score in Terminal Illness
Pancreatitis Prognosis Criteria When Disease Due To Gallstones
Pancreatitis Prognosis Criteria
PERC Rule for the Assessment of Possible Pulmonary Embolism
PLASMIC Score for Estimating the Likelihood of Severe ADAMTS13 Deficiency in Adults with Suspected TTP
Pneumonia Mortality Predictor In the Elderly
Pneumonia Risk in Post Operative Period of Non-Cardiac Surgery
POSSUM Score for Orthopedic Procedure Prognosis
PTCA Complication Prediction Score (death, MI, urgent bypass)
PTCA Mortality Prediction
Pulmonary Embolism Risk by Pisa Study (with chest x-ray)
Pulmonary Embolism Risk by Pisa Study (without chest x-ray)
Pulmonary Embolism Severity Index (PESI)
Pulmonary Embolism Wells Score
RESP Score for ECMO Survival Prediction
Respiratory Failure Risk in Adult Males During Post Operative Period of Non-Cardiac Surgery
REVEAL PAH Score and Estimated One-Year Survival for Adult Patients with Pulmonary Arterial Hypertension
Revised Geneva Score for Estimation of the Clinical Probability of Pulmonary Embolism in Adults
Rockall Score for Upper Gastrointestinal Bleeding
SAPS II: Simplified Acute Physiology Score II
SAVE Score: Survival After Veno-Arterial ECMO
SCORTEN Prediction of Mortality in Toxic Epidermal Necrolysis
Sequential Organ Failure Assessment (Modified): mSOFA Score
Sequential Organ Failure Assessment (Quick): qSOFA Score
Sequential Organ Failure Assessment: SOFA Score
Simplified Pulmonary Embolism Severity Index (sPESI)
SIRS Criteria: Systemic Inflammatory Response Syndrome
SMART COP Score for Pneumonia Severity
SMRT CO Score for Pneumonia Severity
Thrombolysis in Myocardial Infarction (TIMI) Score for ST Elevation Acute Myocardial Infarction
Thrombolysis in Myocardial Infarction (TIMI) Score for Unstable Angina Non ST Elevation Myocardial Infarction
Unstable Angina and Tirofiban Benefit Prediction
Unstable Angina Outcome Prediction
Unstable Angina Risk Stratification (Piombo)
Unstable Angina Risk Stratification (Solomon)
Wilson Score for Prediction of Difficult Intubation

  Decision Trees

Asthma Hospitalization One Year Risk TreeCalc
Heart Failure Clinical Prediction Rule
Left Ventricular Capture Loss in Resynchronization Biventricular Pacing TreeCalc
SARS (Severe Acute Respiratory Distress Syndrome) CDC Case Definition (4/20/2003) TreeCalc



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