A-a Gradient
 
a/A Ratio
 
AaPO2 Correction for FIO2
 
ABC Score for Prediction of 30-Day Mortality in Acute GI Bleeding
 
ABCD Rule Predicting Stroke Within 7 Days of a TIA
 
ABCD2 Score to Predict Stroke Risk after TIA
 
Absolute Eosinophil Count
 
Absolute Lymphocyte Count
 
Absolute Neutrophil Count
 
Absolute Phagocyte Count
 
Absolute Reticulocyte Count
 
Acetaminophen (Paracetamol) Toxicity Assessment (Revised 2023)
 
ACR/EULAR Rheumatoid Arthritis Diagnostic Criteria (2010)
 
Activity Score for Nursing Home Patients
 
Acute Heart Failure Prediction Based on NT-proBNP and Clinical Features
 
Adjusted Cerebrospinal Fluid White Blood Cell Count in the Presence of Red Blood Cells
 
ADO Index Mortality Prediction in COPD
 
Albumin-bilirubin (ALBI) grade estimate of survival of adults with hepatocellular carcinoma (conventional and SI units)
 
Alcohol Consumption Screening AUDIT Questionnaire
 
Alcoholic Liver Disease: Criteria for One Year Mortality Prognosis
 
Allowable Blood Loss
 
Alvarado Score for Acute Appendicitis
 
Aminoglycoside Clearance Estimate
 
Androgen Deficiency in Aging Males (ADAM) Screener
 
Anion Gap Delta Delta Gradient Multicalc
 
Anion Gap Delta Delta Ratio Multicalc
 
Anion Gap in Hypoalbumin States
 
Anion Gap
 
Anthrax Screening for Exposed Patients TreeCalc
 
Aortic Stenosis and Valve Replacement Prediction TreeCalc
 
APACHE II Scoring System by Diagnosis
 
APACHE II Scoring System
 
Apgar Score
 
APRI and Cirrhosis Probability in Hepatitis C
 
Aris birth weight-for-gestational age percentiles, singletons, 22 to 42 weeks gestation
 
ARISCAT (Canet) preoperative pulmonary risk index in adults
 
Arterial Blood Gas Interpretation TreeCalc
 
Ascites Albumin Gradient
 
Asthma Hospitalization One Year Risk TreeCalc
 
ATRIA Score for Prediction of Major Hemorrhage in Atrial Fibrillation Treated with Warfarin
 
Atrial Fibrillation and Arterial Thromboembolism Risk
 
Atrial Fibrillation Five Year Risk of Stroke or Death
 
Atrial Fibrillation Five-Year Risk of Stroke
 
Autoimmune Hepatitis Diagnostic Criteria
 

Bacterial Meningitis Score for Children
 
BAP-65 prediction of in-hospital mortality and need for mechanical ventilation in COPD
 
Barrett Esophagus Progression Risk TreeCalc
 
Basal Energy Expenditure (Harris-Benedict estimation)
 
Basal metabolic rate (BMR) using Schofield equations in children and adolescents
 
Base Excess Determination
 
Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) in Adults
 
Bayesian Statistics I MultiCalc
 
Bayesian Statistics II MultiCalc
 
Bedside Index of Severity in Acute Pancreatitis (BISAP) Score
 
Behcet's Syndrome International Study Group Criteria
 
Behcet's Syndrome Iran Criteria Arithmetic Method
 
Behcet's Syndrome Japanese Ministry of Health and Welfare Criteria
 
Benefit Increase / Number Needed to Treat Multicalc
 
Benign Positional Vertigo Decision TreeCalc
 
Bicarbonate Deficit
 
Bishop Score for Elective Induction
 
Bleeding Risk (any bleeding complication) on Warfarin Therapy
 
Bleeding Risk (major complication) on Warfarin Therapy
 
Bleeding Risk Index for Warfarin Therapy
 
Blood Ethanol Concentration Estimation
 
Blood pressure percentiles, 0 to 17 years (2017 standard)
 
BODE Index for COPD survival prediction in adults
 
Body mass index (BMI) percentiles and Z-scores, females 2 to 20 years (CDC)
 
Body mass index (BMI) percentiles and Z-scores, males 2 to 20 years (CDC)
 
Body Mass Index for Adults (BMI Quetelet's Index)
 
Body Mass Index for Adults (BMI Quetelet's Index, Metric)
 
Body Surface Area (BSA, Du Bois Method)
 
Body Surface Area (BSA, Gehan and George Method)
 
Body Surface Area (BSA, Mosteller, square root method)
 
Body Surface Area Based Dosing
 
Bonacini Discriminant Score and Cirrhosis Probability in Hepatitis C
 
Bowel Obstruction Diagnosis: Utility of X-ray
 
Breast Cancer Recurrence Risk After Mastectomy (simple)
 
Breast cancer risk assessment by Gail Model (2018)
 
Breast cancer risk assessment incorporating breast density (BCSC 2015)
 
Burn Injury Fluid Resuscitation (Brooke estimate)
 
Burn Injury Fluid Resuscitation (Demling dextran estimate)
 
Burn Injury Fluid Resuscitation (Evans estimate)
 
Burn Injury Fluid Resuscitation (Modified Brooke crystalloid estimate)
 
Burn Injury Fluid Resuscitation, Adult (Parkland crystalloid estimate)
 

CAGE Criteria for Potential Excessive Alcohol Use
 
Calcium Correction in Hypoalbuminemia (SI units)
 
Calcium Correction in Hypoalbuminemia
 
Calorie Requirements for Weight Maintenance and Weight Loss in Adult Females (Patient information)
 
Calorie Requirements for Weight Maintenance and Weight Loss in Adult Males (Patient information)
 
Canadian Head CT Rule for Minor Head Injury
 
Cancer and Aging Research Group-Breast Cancer (CARG-BC) score for older adults
 
Caprini DVT Risk Score
 
Carbon Dioxide Production
 
Cardiac Output MultiCalc
 
Cardiac Output Using Oxygen Saturation Data Only
 
Cardiac Output
 
Cardiac Power Output: CPO
 
Cardiac Risk Index in Noncardiac Surgery (Detsky et. al.)
 
Cardiac Risk Index in Noncardiac Surgery (Goldman, et. al.)
 
Cardiovascular Risk Assessment (10-year, ACC/AHA PCE: Pooled Cohort Equations)
 
Cardiovascular Risk Assessment (10-year, ACC/AHA PCE: Pooled Cohort Equations) and Optimization
 
Cardiovascular Risk Assessment (10-year, MESA 2015, with or without CAC score)
 
Cardiovascular Risk Assessment (10-year, MESA 2015, with or without CAC score) and Optimization
 
Cardiovascular Risk Assessment (10-year, PROCAM Score, Munster Heart Study SI units)
 
Cardiovascular Risk Assessment (10-year, PROCAM Score, Munster Heart Study)
 
Cardiovascular Risk Assessment (10-year, Revised Pooled Cohort Equations 2018)
 
Cardiovascular Risk Assessment in Adult Females (10-year risk, Framingham 2008)
 
Cardiovascular Risk Assessment in Adult Females (10-year, Reynolds Risk Score 2007)
 
Cardiovascular Risk Assessment in Adult Males (10-year risk, Framingham 2008)
 
Cardiovascular Risk Assessment in Adult Males (10-year, Reynolds Risk Score 2008)
 
Cardiovascular risk assessment in adults (10 and 30-year, AHA PREVENT™ 2023)
 
Cardiovascular Risk Assessment in Type I Diabetes (5-year)
 
Carpal Tunnel Syndrome Bivariate Decision TreeCalc
 
Carpal Tunnel Syndrome Multivariate Decision TreeCalc
 
CDC height-for-age percentiles for females, 2 to 20 years
 
CDC height-for-age percentiles for males, 2 to 20 years
 
CDC infant growth percentiles, 0 to 36 months
 
CDC infant head circumference-for-age percentiles, 0 to 36 months
 
CDC infant length-for-age percentiles, 0 to 36 months
 
CDC infant weight-for-age percentiles, 0 to 36 months
 
CDC infant weight-for-length percentiles, 0 to 36 months
 
CDC weight-for-age percentiles for females, 2 to 20 years
 
CDC weight-for-age percentiles for males, 2 to 20 years
 
CDC weight-for-height percentiles for females, 77 to 121 cm
 
CDC weight-for-height percentiles for males, 77 to 121 cm
 
Center for International Blood and Marrow Transplant Research (CIBMTR) Chronic Graft-Versus-Host-Disease (GVHD) Risk Score
 
Centor Strep Pharyngitis Criteria With McIsaac Modification
 
Cervical Spine Injury Prediction in Blunt Trauma
 
Cesarean Section Delivery Probability Among Nulliparous Patients TreeCalc
 
Cesarean Section Delivery Probability Among Parous Patients TreeCalc
 
CHADS-VASc Score for Stroke Risk in Atrial Fibrillation (CHA[2]DS[2]-VASc)
 
CHADS2 Score for Stroke Risk in Atrial Fibrillation (CHADS[2])
 
Chest Pain Risk Assessment in Patients with Normal Troponin and No ST-T Changes
 
Chest Pain Score
 
Chi Square Analysis
 
Child Pugh Classification for Severity of Liver Disease (SI units)
 
Child Pugh Classification for Severity of Liver Disease
 
Chronic Fatigue Syndrome Diagnostic Criteria
 
Chronic Kidney Disease 10 Year Risk Score
 
Chronic Kidney Disease: 5-Year Mortality Risk in Older Adults
 
CIP (Critical Illness Prediction) Score
 
Cirrhosis Probability in Hepatitis C MultiCalc
 
CIWA-Ar Clinical Institute Withdrawal Assessment for Alcohol scale
 
Clinical criteria for exudative pleural effusion in adults (Light's criteria with continuous likelihood ratios)
 
Clinical criteria for exudative pleural effusion in adults (pleural fluid only-3 criteria with continuous likelihood ratios)
 
Clinical criteria for exudative pleural effusion in adults (pleural fluid only-3 criteria)
 
Clinical Diagnostic Rule for Initial Gout Flare
 
Clinical Grading to Predict Malignant Hyperthermia
 
Clinical Opioid Withdrawal Scale (COWS) for adults and adolescents
 
Clinical Pulmonary Infection Score (CPIS)
 
Clock Drawing Task (Cognitive Impairment Screening)
 
Closing Capacity to Total Lung Volume Capacity
 
Closing Capacity
 
Closing Volume to Vital Capacity Ratio
 
Clostridium Difficile Disease (CDD) Severity (Hines VA Score)
 
Clostridium Difficile Severity Score (UPMC 2008)
 
Cognitive Impairment Screening with 6 Questions
 
Community-acquired pneumonia severity index (PSI) for adults
 
Confidence Interval of a Binomial Proportion
 
Confidence Interval of a Difference Between Proportions
 
Confidence Interval of a Ratio of Proportions
 
Confidence Interval of a Ratio of Ratios
 
Confidence Interval of a Survey
 
Conjunctivitis Agent Prediction (bacterial or other)
 
Conventional unit to SI unit conversions: Chemistry and endocrine tests
 
Conventional unit to SI unit conversions: Immunology test values
 
COPD Assessment Test (CAT)
 
COPE Statistic Adding Cost to Number Needed to Treat
 
Corrected/Adjusted Age of Preterm Infants
 
Cost of Smoking
 
COVID-19 ABC₂-SPH Score
 
COVID-19 AID Score
 
COVID-19 and the Prognostic Nutrition Index (PNI)
 
COVID-19 and the Systemic Immune-Inflammation Index (SII)
 
COVID-19 CALL Score
 
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 ISARIC C4 Score
 
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 PAWNN Score
 
COVID-19 PRIORITY 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 SEIMC Score
 
COVID-19 Severity by M-CHA(2)DS(2)-VASc Score
 
COVID-19 Severity by Shock Index and Modified Shock Index
 
COVID-19 Simplified HOSPITAL Score for Readmission Risk
 
COVID-19 SOARS Score
 
COVID-19 Symptom-Based C19 Rule for Diagnosis
 
Creatinine Clearance (measured)
 
Creatinine Clearance (measured, SI units)
 
Creatinine Clearance by Mass
 
Creatinine Clearance Estimate by Cockcroft-Gault Equation (SI units)
 
Creatinine Clearance Estimate by Cockcroft-Gault Equation with Ideal Body Weight
 
Creatinine Clearance Estimate by Cockcroft-Gault Equation
 
Creatinine Clearance Estimate by Jelliffe Formula
 
Creatinine Clearance Estimate by Sanaka Formula (for older subjects with low muscle mass)
 
Creatinine Kinetics MultiCalc
 
Crohn's Disease Activity Index (CDAI) in adults
 
CSF IgG Index
 
CSF Protein Concentration Correction in Blood Contaminated CSF
 
CURB Pneumonia Severity Score
 
CURB-65 Pneumonia Severity Score
 

Diabetes Risk Score (Type 2)
 
Diabetes Risk Self Assessment
 
Diabetes Screening TreeCalc
 
Diabetes Type Predictor TreeCalc
 
DIC Score
 
Diffusing capacity for carbon monoxide (DLCO) corrected for anemia
 
Diffusing capacity for carbon monoxide (DLCO) correction of predicted value for anemia (SI units)
 
Digitalis Body Load
 
Dose Adjustment for Body Surface Area
 
Dose Driven IV-Drip Rate Calculator
 
DVT Probability: Ambulatory Score System (Constans, 2003 paper)
 
DVT Probability: Kahn Score System
 
DVT Probability: Primary Care Rule Including D-dimer
 
DVT Probability: St. Andre Score System
 
DVT Probability: Wells Score System
 
Dynamic International Prognostic Scoring System-Plus (DIPSS-Plus) for Primary Myelofibrosis (PMF) in Adults and Adolescents
 

Eckardt symptom score for achalasia
 
ECOG Performance Status
 
Ectopic Pregnancy Risk Estimation TreeCalc
 
Edinburgh Postnatal Depression Scale (EPDS)
 
Ehlers-Danlos Syndrome IV (vascular type) Diagnostic Criteria
 
ELBW Infant Prognosis Prediction
 
Embolic Risk (ER) French Score in Infective Endocarditis
 
Endotracheal tube size for children (Age 1 to 8 years)
 
Energy Loss Index and the Severity of Asymptomatic Aortic Stenosis
 
Energy Unit Conversions
 
England Fraser Index for Differentiating Beta-thalassemia Trait from Iron-deficiency
 
Epidural Formulation Compounding Calculator
 
Epworth Sleepiness Scale (ESS)
 
Esophageal Varices: Prediction from Platelet Count to Spleen Diameter Ratio
 
Estimated Blood Volume
 
Estimated Date of Delivery (EDD) by LMP and Ultrasound
 
Estimated Delivery Date (Patient information)
 
EuroSCORE for Cardiac Surgery Risk Assessment (1999 additive version)
 
EUTOS long-term survival (ELTS) score in adults with chronic myeloid leukemia (conventional and SI units)
 

Fall Risk in Elderly Hospitalized Patients
 
False Negative Rate from Sensitivity and Prevalence
 
False Negative Ratio from Sensitivity and Prevalence
 
False Positive Rate from Specificity and Prevalence
 
False Positive Ratio from Specificity and Prevalence
 
Fat Free Mass, a Measure of Lean Body Weight
 
Fear Avoidance Beliefs Questionnaire (FABQ) about Physical Activity
 
Fear Avoidance Beliefs Questionnaire (FABQ) about Work
 
Fenton weight-for-gestational age percentiles, 22 to 50 weeks gestation (2007, not sex-specific)
 
FIB-4 and Cirrhosis Probability in Hepatitis C
 
Flow Unit Conversions
 
Fractional Excretion of Amylase (Amylase to creatinine clearance ratio)
 
Fractional Excretion of Calcium (FECa)
 
Fractional Excretion of Magnesium (SI units)
 
Fractional Excretion of Magnesium
 
Fractional excretion of phosphate (FePO₄)
 
Fractional Excretion of Sodium (FENa)
 
Fractional Excretion of Sodium (FENa, SI units)
 
Fractional Excretion of Urate
 
Fractional Excretion of Urea (FEUrea)
 
Fracture Index WITH known Bone Mineral Density (BMD)
 
Fracture Index WITHOUT known Bone Mineral Density (BMD)
 
Friedewald Equation for Low Density Lipoprotein (LDL-C)
 
Friedewald Equation for Low Density Lipoprotein (LDL-C, SI units)
 
Functional Residual Capacity
 

GAD-7 Generalized Anxiety Disorder Scale
 
Genetically Inspired International Prognostic Scoring System (GIPSS) for Primary Myelofibrosis in Adults
 
Geneva Risk Score for Venous Thromboembolism in Hospitalized Medical Patients
 
Geriatric Depression 1 Item Screener
 
Geriatric Depression 4 Item Scale
 
Geriatric Depression Scale (15-item GDS)
 
Geriatric Depression Scale (30-item GDS)
 
Geriatric-Sensitive Perioperative Cardiac Risk Index (GSCRI)
 
Gestational Age from Estimated Date of Delivery (EDD)
 
Glasgow Alcoholic Hepatitis Score
 
Glasgow Blatchford Score for Gastrointestinal Bleeding
 
Glasgow Coma Scale in Adults
 
Glomerular Filtration Rate Estimation (eGFR) by AASK Equation
 
Glomerular Filtration Rate Estimation (eGFR) by CKD-EPI Equation (2009)
 
Glomerular Filtration Rate Estimation (eGFR) by CKD-EPI Equation with Creatinine and Cystatin C, without Race (2021)
 
Glomerular Filtration Rate Estimation (eGFR) by CKD-EPI Equation with Creatinine, without Race (2021)
 
Glomerular Filtration Rate Estimation (eGFR) by CKD-EPI Equation with Cystatin C, without Race (2012)
 
Glomerular Filtration Rate Estimation (eGFR) by CKiD U25 Equations with Creatinine and/or Cystatin C in Children and Adults ≤25 Years Old (2021)
 
Glomerular Filtration Rate Estimation (eGFR) by Quadratic Equation
 
Glomerular Filtration Rate Estimation (eGFR) by Schwartz Formula
 
Glomerular Filtration Rate Estimation (eGFR) by the Abbreviated MDRD Study Equation (SI units)
 
Glomerular Filtration Rate Estimation (eGFR) by the Abbreviated MDRD Study Equation
 
Glomerular Filtration Rate Estimation (eGFR) by the IDMS-Traceable MDRD Study Equation
 
Glomerular Filtration Rate Estimation (eGFR) by the MDRD Equation (SI units)
 
Glomerular Filtration Rate Estimation (eGFR) by the MDRD Equation
 
Glomerular Filtration Rate Estimation (eGFR) by Updated Schwartz Formula
 
Glucose Management Indicator (GMI)
 
Glycemic Assessment: A1C to Average Glucose Conversions
 
Good Outcomes Following Attempted Resuscitation (GO-FAR) score
 
Gorlin Formula for Valve Area
 
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)
 
Gravity Flow Rate Calculator
 
Green King Index for Differentiating Beta-thalassemia Trait from Iron-deficiency
 
GUCI and Cirrhosis Probability in Hepatitis C
 
Gupta Perioperative Cardiac Risk Prediction
 
Gupta postoperative pneumonia risk in adults
 
Gupta postoperative respiratory failure risk in adults
 
Gurd's Diagnostic Criteria for Fat Embolism Syndrome
 

Harvey-Bradshaw Index of Crohn's Disease Activity
 
HAS-BLED Bleeding Risk Score
 
Heart Failure Clinical Prediction Rule
 
Heart Failure Diagnosis
 
HEART Score
 
Height Potential: A Child's Target Height Based on Midparental Height
 
Henderson-Hasselbach Equation
 
Heparin Induced Thrombocytopenia 4 Ts Score
 
Hepatitis C Cirrhosis Probability
 
Hepatitis C Fibrosis Prediction Score
 
Hepatitis C Outcome TreeCalc
 
Hepatitis Discriminant Function for Corticosteroid Therapy in Alcoholic Hepatitis
 
HOMA Formula: Homeostasis Model Assessment of Insulin Resistance
 
Housestaff Activity Index
 
Hypersensitivity Pneumonitis Prediction
 
Hyponatremia Correction Infusate Rate
 

ICE Score: Immune Effector Cell-Associated Encephalopathy
 
Ideal body weight (method of Devine) and adjusted body weight for adults
 
Ideal Body Weight Percentage
 
Ideal Body Weight
 
In-Flight PaO2 Estimation (using PFT's)
 
In-Flight PaO2 Estimation
 
Inferior Wall Myocardial Infarction Diagnosis TreeCalc
 
Injury Severity Score (ISS)
 
Inspiratory Capacity
 
INTERCHEST Score for Chest Pain Risk Assessment
 
International Early Warning System (IEWS)
 
International Normalized Ratio of Prothrombin Time (INR)
 
International Prognostic Index for Non-Hodgkin Lymphoma
 
International Prognostic Score in Hodgkin Lymphoma (1998)
 
International Prognostic Score in Hodgkin Lymphoma (2012 update)
 
International Prostatism Symptom Score (IPSS)
 
Intracerebral Hemorrhage Score
 
Intracranial Bleeding Risk from Thrombolytic Therapy of MI
 
Irritable Bowel Syndrome Diagnostic Criteria (Manning Criteria)
 
Ishak Grading of Chronic Hepatitis
 
IV Drip Maintenance Rate Calculator
 

Jones Criteria for Diagnosis of Rheumatic Fever
 

Kappa Measurement of Inter-observer Agreement MultiCalc
 
Kappa Measurement of Inter-observer Agreement: Bennett's Kappa
 
Kappa Measurement of Inter-observer Agreement: Cohen's Kappa
 
Kappa Measurement of Inter-observer Agreement: Scott's Kappa
 
Karnofsky Performance Status Score
 
Kawasaki Disease Diagnostic Criteria
 
Kawasaki Disease Kobayashi Score
 
Khorana Score for Estimating Venous Thromboembolism Risk in Adults with Cancer
 
Kidney Failure Risk Equation (KFRE) (4-variable)
 
Kidney Failure Risk Equation (KFRE) (8-variable)
 
Kt/V Dialysis Dose Barth Formula
 
Kt/V Dialysis Dose Basile Formula
 
Kt/V Dialysis Dose Daugirdas Formula
 
Kt/V Dialysis Dose Formulae MultiCalc
 
Kt/V Dialysis Dose Jindal Formula
 
Kt/V Dialysis Dose Kerr Formula
 
Kt/V Dialysis Dose Keshaviah Formula
 
Kt/V Dialysis Dose Lowrie Formula
 

LACE Score Predicting Readmission or Post Hospitalization Death
 
Lean Body Weight (Female)
 
Lean Body Weight (Male)
 
Lean Body Weight Based on Creatinine Production
 
Left Atrial Thrombus Resolution in Mitral Stenosis Patients on Anticoagulation (for up to 34 months)
 
Left Ventricular Capture Loss in Resynchronization Biventricular Pacing TreeCalc
 
Length Unit Conversions
 
Light's Criteria for Exudative Pleural Effusion
 
Likelihood Ratio MultiCalc
 
Likelihood Ratio of Negative from Raw Data
 
Likelihood Ratio of Positive from Raw Data
 
Lipoprotein Insulin Resistance Index (LPIR Index)
 
Lok Index and Cirrhosis Probability in Hepatitis C
 
Low anterior resection syndrome (LARS) score
 
Low Back Pain Evaluation TreeCalc
 
Lower GI Bleeding and Risk of Severe Bleeding
 
Lung Age Estimation for Smoking Cessation Counseling
 
Lung Cancer One Year Risk Estimation (for smokers 50-75 years old)
 
Lung Cancer Risk Estimation in Current and Past Smokers (6-year)
 
Lung Volume Multicalc
 

M.I. Criteria for Likelihood in Chest Pain with LBBB
 
M.I. Prediction Decision TreeCalc
 
MAF-5 metabolic dysfunction–associated fibrosis 5 score
 
MAGGIC Score Predicting Heart Failure Survival
 
Maintenance fluid calculation for children based on daily fluid requirements
 
Maintenance Fluid Calculation for Children Based on Hourly Fluid Requirements
 
Mangled Extremity Severity Score (MESS score)
 
Mantle Cell Lymphoma International Prognostic Index (MIPI)
 
Martin Equation for Low Density Lipoprotein (LDL-C)
 
Mayo Chronic Myelomonocytic Leukemia (CMML) Prognostic Model in Adults (conventional and SI units)
 
Mayo Score for Assessing Ulcerative Colitis Activity
 
MDACC Myelodysplastic Syndrome Prognostic Model
 
Mean Arterial Pressure (MAP) in Adults and Children (conventional or SI units)
 
Mean Corpuscular Hemoglobin Concentration
 
Mean Corpuscular Hemoglobin
 
Mean Corpuscular Volume
 
Mean Vascular Pressure (systemic or pulmonary)
 
MEDS Score: Mortality in ER Sepsis
 
MELD 3.0 Score EXCLUDING Serum Albumin
 
MELD 3.0 Score Including Serum Albumin
 
MELD/MELDNa scores (2016)(SI units)
 
MELD/MELDNa scores (2016)
 
Metabolic Syndrome Criteria (AACE 2003)
 
Metabolic Syndrome Criteria (AHA/NHLBI 2005)
 
Metabolic Syndrome Criteria (ATP III)
 
Metabolic Syndrome Criteria (EGIR)
 
Metabolic Syndrome Criteria (IDF 2005)
 
Metabolic Syndrome Criteria (WHO 1998)
 
Mifflin-St Jeor Resting Energy Expenditure (REE)
 
Migraine Screener
 
Migraine With Aura Diagnostic Criteria
 
Migraine Without Aura Diagnostic Criteria
 
Milan Criteria in Liver Transplantation for Hepatocellular Carcinoma
 
MMRC: Modified Medical Research Council Scale for Dyspnea
 
Model for Endstage Liver Disease (MELD) score in adults (not for liver transplantation listing purposes) (conventional units)
 
Model for Endstage Liver Disease (MELD) score in adults (not for liver transplantation listing purposes) (SI units)
 
Modified Fisher Scale for Subarachnoid Hemorrhage
 
Modified Wells score for deep vein thrombosis (DVT)
 
Mortality After Hospitalization in Older Adults (SI units)
 
Mortality After Hospitalization in Older Adults
 
Mortality Probability Admission Model (MPM0-III) for critical illness in adults
 
Mortality risk in postoperative adult patients with cirrhosis
 
Moser Discriminant Function for X-ALD
 
MuLBSTA Score to Predict Mortality in Viral Pneumonia
 
Multinational Association for Supportive Care in Cancer (MASCC) risk index for patients with neutropenic fever
 
Multiple Myeloma Diagnostic Criteria
 
Multiple Organ Dysfunction Score (MODS)
 
Mutation and Karyotype-Enhanced International Prognostic Scoring System for Primary Myelofibrosis in adults 70 and younger (MIPSS70+ version 2.0)
 
Mycoplasma Pneumoniae Prediction TreeCalc
 
Mycoplasma Pneumoniae Prediction in Children with Pneumonia
 
Myelodysplastic Syndrome International Prognostic Scoring System
 

NAFLD Fibrosis Score
 
Nasal Cannula Oxygen Fractional Inspired O₂ (FiO₂) Estimate
 
NASH Fibrosis Risk (Nonalcoholic Steatohepatitis) TreeCalc
 
National Early Warning Score 2 (NEWS2)
 
Negative Predictive Value from Raw Data
 
Negative Predictive Value of a Test
 
Neonatal Early-Onset Sepsis Risk Prediction
 
Neurofibromatosis Type 1 Diagnostic Criteria
 
Neurofibromatosis Type 2 Diagnostic Criteria (1987 NIH)
 
Neurofibromatosis Type 2 Diagnostic Criteria (1991 NIH)
 
Neuropathic Pain Scale (NPS)
 
Neutrophil to Lymphocyte Ratio and Risk of Stroke in Atrial Fibrillation
 
New Orleans Head CT Criteria
 
Newborn hyperbilirubinemia assessment for infants born at 35 weeks or more gestation (2022 update)
 
NIH Chronic Prostatitis Symptom Index
 
NIH Stroke Score
 
Non Q Wave Myocardial Infarction Prediction
 
Nonbiliary Cirrhosis Prognostic Criteria for One Year Survival
 
Normal Range for Body Weight
 
Norton Scale to Stratify Risk of Pressure Sores
 
Number Needed to Harm (NNH) from Odds Ratio (OR) and Patient Expected Event Rate (PEER)
 
Number Needed to Treat (NNT) from Odds Ratio (OR) and Patient Expected Event Rate (PEER)
 

Obesity Management Guidelines, National Institutes of Health / NHLBI TreeCalc
 
Odds from Probability
 
Odds Ratio and Relative Risk
 
Olsen infant BMI-for-gestational-age percentiles, 24 to 41 weeks gestation
 
Olsen infant head circumference-for-gestational-age percentiles, 23 to 41 weeks gestation
 
Olsen infant length-for-gestational-age percentiles, 23 to 41 weeks gestation
 
Olsen infant weight-for-gestational-age percentiles, 23 to 41 weeks gestation
 
Omeprazole Therapeutic Gain (over placebo) in Dyspepsia
 
Omeprazole Therapeutic Index in Dyspepsia
 
ORBIT Bleeding Risk Score in Atrial Fibrillation
 
Osmolal Gap Calculator (SI units)
 
Osmolal Gap Calculator
 
Osmolality Estimator (serum)
 
Osmolar Clearance
 
Osteoporosis Risk Assessment by Composite Linear Estimate (ORACLE score)
 
Osteoporosis Risk Assessment Instrument (ORAI)
 
Osteoporosis Risk SCORE (Simple Calculated Osteoporosis Risk Estimation)
 
Osteoporosis Self Assessment Tool for Adult Females
 
Osteoporosis Self Assessment Tool for Adult Males
 
Oswestry Disability Index Version 1
 
Oswestry Disability Index Version 2
 
Ottawa Ankle Rule for the Use of X-Ray in Ankle Injury
 
Ottawa Foot Rule for the Use of X-Ray in Foot Injury
 
Ottawa Heart Failure Risk Scale
 
Ottawa Knee Rule for use of X Ray in Knee Injury
 
Ottawa Subarachnoid Hemorrhage (SAH) Rule
 
Overall Accuracy of a Test from Raw Data
 
Overall Accuracy of a Test from Sensitivity, Specificity and Prevalence
 
Oxygen Consumption
 
Oxygen Content of Arterial Blood
 
Oxygen Content of Venous Blood
 
Oxygen Delivery Units Conversions
 
Oxygen Saturation Estimate from PO2
 
Oxygenation index in neonates, children, and adults
 

Pacer Need After Heart Valve Surgery
 
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
 
Panic Disorder Screener
 
PaO2 / FIO2 Ratio (for MODS Calculation)
 
PaO2 Correction for FIO2
 
PASI Psoriasis Area and Severity Index
 
PEACH Score: Estimating Perioperative Mortality in Adult Congenital Heart Disease Surgery
 
Peak Expiratory Flow Prediction in adults
 
Peak expiratory flow prediction in females (18 to 85 years)
 
Peak expiratory flow prediction in females (5 to <18 years)
 
Peak expiratory flow prediction in males (18 to 85 years)
 
Peak expiratory flow prediction in males, 5 to <18 years
 
Peak Expiratory Flow Variability in Asthma
 
PECARN Head Trauma Head CT Decision Tree
 
Pediatric Ulcerative Colitis Activity Index (PUCAI)
 
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)
 
Penn State Equations for Resting Energy Expenditure in Critically Ill Patients
 
PERC Rule for the Assessment of Possible Pulmonary Embolism
 
Perioperative Cardiac Evaluation TreeCalc
 
PFT Adjusted Predicted Values for Adult Females MultiCalc
 
PFT Adjusted Predicted Values for Adult Males MultiCalc
 
PFT predicted values by 2022 race-neutral GLI equations, ages 3 to 95
 
PFT Predicted Values for Adult Females MultiCalc
 
PFT Predicted Values for Adult Males MultiCalc
 
PFT Predicted Values for Pediatric Females MultiCalc
 
PFT Predicted Values for Pediatric Males MultiCalc
 
PHASES Score for 5-Year Risk of Intracranial Aneurysm Rupture
 
Phenytoin Free (Unbound) Drug Level (Adjusted for Hypoalbuminemia, Dasgupta, 1991)
 
Phenytoin Total Drug Level (Adjusted for Hypoalbuminemia and Renal Function)
 
PHQ-2 Depression (any) Screening by a Two Item Questionnaire
 
PHQ-2 Depression (major) Screening by a Two Item Questionnaire
 
Pittsburgh Knee Rule for X-Ray Evaluation of Knee Injury TreeCalc
 
PLASMIC Score for Estimating the Likelihood of Severe ADAMTS13 Deficiency in Adults with Suspected TTP
 
Pneumonia Mortality in Nursing Home Patients by Logistic Regression
 
Pneumonia Mortality Prediction in Nursing Home Patients (SI Units)
 
Pneumonia Mortality Prediction in Nursing Home Patients
 
Pneumonia Mortality Predictor In the Elderly
 
Pneumonia Probability in Nursing Home Patients
 
Pneumonia Risk in Post Operative Period of Non-Cardiac Surgery
 
Pneumothorax Degree of Collapse
 
Polycythemia Vera Diagnostic Criteria
 
Positive Predictive Value from Raw Data
 
Positive Predictive Value of a Test
 
POSSUM Score for Orthopedic Procedure Prognosis
 
Post Test Odds from Pre Test Odds and Likelihood Ratio MultiCalc
 
Post Test Odds of a Negative from Raw Data
 
Post Test Odds of a Negative Result from Sensitivity Specificity and Prevalence
 
Post Test Odds of a Positive from Raw Data
 
Post Test Odds of a Positive Result from Sensitivity Specificity and Prevalence
 
Post Test Probability from Pre Test Probability, Sensitivity and Specificity
 
Post-Test Probability from Likelihood Ratios and Multiple Test Results
 
Post-Test Probability from Sensitivity and Specificity of Multiple Test Results
 
Pre Test Odds from Prevalence
 
Pre Test Odds from Raw Data
 
Predicted body weight and tidal volume in adults
 
Predicted postoperative FEV1 following lung resection surgery (anatomic method)
 
Predicted postoperative FEV1 following lung resection surgery (perfusion method)
 
Predicted total lung capacity (pTLC) in adults
 
Pregnancy Gestation by LMP and Ultrasound Biometry
 
Pressure Adjusted Heart Rate (For MODS calculation)
 
Prevalence of a Finding or Disease from Test Data
 
Probability from Odds
 
Probability of heart failure with preserved ejection fraction (H₂FPEF score) in adults with dyspnea
 
Progressive Multifocal Leukoencephalopathy (PML) Risk in patients Treated with Natalizumab
 
Protein Bound Calcium
 
Protein Catabolic Rate (normalized PCR)
 
Protein Catabolic Rate
 
PTCA Complication Prediction Score (death, MI, urgent bypass)
 
PTCA Mortality Prediction
 
Pulmonary Artery Pulsatility Index: PAPi
 
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
 
Pulmonary Fibrosis Survival Prediction (CRP Score for abbreviated model)
 
Pulmonary Fibrosis Survival Prediction (CRP score for complete model)
 
Pulmonary Vascular Resistance
 
Pulse Pressure Variation (percentage)
 

QT Interval Correction (EKG, Bazett Equation)
 
QT Interval Correction (EKG, Multi-Equation)
 
QUICKI Formula for Insulin Resistance
 

Rabies Post Exposure Prophylaxis (PEP) TreeCalc
 
Renal Artery Stenosis Prediction Rule
 
Renal Failure Index
 
Residual Renal Function in Hemodialysis Patients (Kru)
 
Residual Volume to Total Lung Capacity Ratio
 
RESP Score for ECMO Survival Prediction
 
Respiratory Failure Risk in Adult Males During Post Operative Period of Non-Cardiac Surgery
 
Respiratory Quotient
 
Reticulocyte Production Index
 
REVEAL PAH Score and Estimated One-Year Survival for Adult Patients with Pulmonary Arterial Hypertension
 
Revised Cardiac Risk Index for Non-AAA Vascular Surgery (Lee)
 
Revised Cardiac Risk Index for Orthopedic Surgery (Lee)
 
Revised Geneva Score for Estimation of the Clinical Probability of Pulmonary Embolism in Adults
 
Revised International Prognostic Scoring System (IPSS-R) in Primary Myelodysplastic Syndrome in Adults
 
Rheumatoid arthritis Clinical Disease Activity Index (CDAI)
 
Rheumatoid Arthritis Criteria (1987 revision, American Rheumatism Association)
 
Rheumatoid arthritis Disease Activity Score with C-reactive protein (DAS28-CRP)
 
Rheumatoid arthritis Disease Activity Score with Erythrocyte Sedimentation Rate (DAS28-ESR)
 
Rheumatoid arthritis Simplified Disease Activity Index (SDAI)
 
Right to Left Shunt Fraction Qs/Qt
 
Right Ventricular Systolic Pressure (RVSP) in Tricuspid Regurgitation
 
Risk Increase / Number Needed to Harm Multicalc
 
Risk of Acquiring Diabetes Mellitus (7.5-year)
 
Risk of Acquiring Diabetes Mellitus (7.5-year) and Optimization
 
Risk of Paradoxical Embolism (RoPE) Score in Adults
 
Risk Reduction / Number Needed to Treat Multicalc
 
Rockall Score for Upper Gastrointestinal Bleeding
 
Roland-Morris Disability Score
 
Romhilt-Estes Criteria for Left Ventricular Hypertrophy
 
ROSE Score: Risk Stratification of Syncope in the Emergency Department
 
Rotator Cuff Tear Diagnosis
 
ROX Index (Respiratory rate--oxygenation)
 

SALT Score for the Severity of Alopecia Areata
 
Sampson Equation for Low Density Lipoprotein (LDL-C)
 
San Francisco Syncope Rule TreeCalc
 
SAPS II: Simplified Acute Physiology Score II
 
SARS (Severe Acute Respiratory Distress Syndrome) CDC Case Definition (4/20/2003) TreeCalc
 
SARS Prognosis Predictor (basic parameters)
 
SARS Prognosis Predictor (with lab and x-ray parameters)
 
SAVE Score: Survival After Veno-Arterial ECMO
 
SCORTEN Prediction of Mortality in Toxic Epidermal Necrolysis
 
Sensitivity of a Test
 
Septic Arthritis Prediction in Pediatric Hip Pain Syndrome
 
Sequential Organ Failure Assessment (Modified): mSOFA Score
 
Sequential Organ Failure Assessment (Quick): qSOFA Score
 
Sequential Organ Failure Assessment: SOFA Score
 
Serum Sodium Concentration Change Considering Infused and Excreted Cations
 
SI unit to conventional unit conversions: Chemistry and endocrine tests
 
SI unit to conventional unit conversions: Immunology test values
 
Simplified Pulmonary Embolism Severity Index (sPESI)
 
SIRS Criteria: Systemic Inflammatory Response Syndrome
 
Sleep Apnea Syndrome (SAS) Prediction by Pulmonary Function Testing of Snorers
 
Sleep problems questionnaire
 
SLICC Criteria for the Diagnosis of Systemic Lupus Erythematosus
 
Smallpox Risk Assessment (CDC version 1.0, 2002) TreeCalc
 
SMART COP Score for Pneumonia Severity
 
Smoking Cessation and Intervention TreeCalc
 
SMRT CO Score for Pneumonia Severity
 
Sodium Change in Hyperproteinemia
 
Sodium Change in Hypertriglyceridemia
 
Sodium Concentration Correction for Hyperglycemia (Emmett 2013)(conventional or SI units)
 
Sodium Correction in Hyperglycemia (Hillier 1999)
 
Sodium Correction in Hyperglycemia (Katz 1973)
 
Sodium Deficit in Hyponatremia
 
Sokal Score for Chronic Myeloid Leukemia
 
Solitary Pulmonary Nodule Malignancy Risk (Brock abbreviated model)
 
Solitary Pulmonary Nodule Malignancy Risk (Brock University)
 
Solitary Pulmonary Nodule Malignancy Risk (Cummings prediction model: Bayesian approach)
 
Solitary Pulmonary Nodule Malignancy Risk (Mayo Clinic model)
 
Solitary Pulmonary Nodule Malignancy Risk (Veterans Affairs model)
 
Specificity of a Test
 
Spinal Manipulation Success Prediction for Low Back Pain
 
Splenic Marginal Zone Lymphoma Study Group (SMZLSG) Prognostic Index in Adults
 
Stage III Pressure Ulcer TreeCalc
 
Stage IV Pressure Ulcer TreeCalc
 
Standard Drink Equivalents
 
Stool Osmolal Gap
 
STOP-Bang Enhanced Screening Questionnaire for Obstructive Sleep Apnea (OSA)
 
Stress Test Outcome Risk Factors
 
Stroke Recovery Prediction
 
Stroke Risk in Diabetes Type 2 UKPDS 60
 
Stroke Risk in Female Patients 55-84 Years Old (Framingham data)
 
Stroke Risk in Male Patients 55-84 Years Old (Framingham data)
 
Surgical Apgar score (SAS) in adults undergoing general surgery procedures
 
Survey Sample Size with Population Correction
 
Survey Sample Size
 
Syncope Risk Prediction
 
Systemic Lupus Erythematosus American Rheumatism Association 11 Criteria (1997 update)
 
Systemic Vascular Resistance
 
Systolic Murmur Significance Probability
 
Systolic Pressure Variation (percentage)
 

T-MACS Troponin-Only Manchester Acute Coronary Syndrome Prediction
 
Temperature Unit Conversions
 
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
 
Thrombolysis in Myocardial Infarction Risk Index (TRI) in Non ST Elevation Myocardial Infarction
 
Thyroid Disease Screening for Females More Than 50 Years Old TreeCalc
 
Thyroid Imaging Reporting and Data System (TI-RADS) with Guidance on FNA of Thyroid Nodules in Adults
 
TIA Prognosis: Risk of Stroke by 90 Days After Presentation
 
Time Averaged Concentration of Urea in Hemodialysis
 
Time Unit Conversions
 
TIPS Risk predictor / Survival predictor (Transjugular Intrahepatic Portosystemic Shunt)
 
Total Body Water (BIA formula)
 
Total Body Water Estimation Based on Weight Alone
 
Total Body Water in Adult Females (Humes-Weyer formula)
 
Total Body Water in Adult Females (Johansson formula)
 
Total Body Water in Adult Females (Lee formula)
 
Total Body Water in Adult Females (Watson formula)
 
Total Body Water in Adult Males (Humes-Weyer formula)
 
Total Body Water in Adult Males (Johansson formula)
 
Total Body Water in Adult Males (Lee formula)
 
Total Body Water in Adult Males (Watson formula)
 
Total Daily Energy Requirement Estimate
 
Total Lung Capacity
 
Transferrin Receptor-Ferritin Index for Diagnosis of Iron deficiency Anemia
 
Transferrin Saturation
 
Transtubular Potassium Gradient at CCD
 
Trial of labor after cesarean (TOLAC) for use at entry to prenatal care (2021 equation without race)
 
True Negative Ratio from Specificity and Prevalence
 
True Positive Ratio from Sensitivity and Prevalence
 
Tuberculosis Risk Prediction
 

UCLA Integrated Staging System (UISS) prognostic model for adults with renal cell carcinoma treated with nephrectomy
 
Unstable Angina and Tirofiban Benefit Prediction
 
Unstable Angina Outcome Prediction
 
Unstable Angina Risk Stratification (Piombo)
 
Unstable Angina Risk Stratification (Solomon)
 
Urea Reduction Percentage in Hemodialysis (PRU)
 
Urea Reduction Ratio in Hemodialysis (URR)
 
Urinary Protein Excretion Estimation
 
Urine anion gap
 
Urine osmolal gap (UOG) (SI units)
 
Urine osmolal gap (UOG)
 

Venous Leg Ulcer Healing Prediction
 
Venous Segmental Disease Score for Obstruction
 
Venous Segmental Disease Score for Reflux
 
Ventilation Index
 
Very Low Density Lipoprotein (VLDL)
 
Veterans Affairs Frailty Index (VA-FI)
 
Villalta Score for Severity of Post-thrombotic Syndrome
 
Vital Capacity
 
Volume of Distribution of Urea
 
Volume Unit Conversions
 

Waist to Hip Ratio
 
Water Deficit in Hypernatremia
 
Weight Based Divided Dose Calculator
 
Weight Based Dosage Calculator
 
Weight Loss Indices Following Bariatric Surgery in Adults
 
Weight Unit Conversions
 
Westley croup severity score (appropriate for use in children ≤6 years of age)
 
WHO assessment of malnutrition in females, 0 to 24 months
 
WHO assessment of malnutrition in females, 2 to 5 years
 
WHO assessment of malnutrition in males, 0 to 24 months
 
WHO assessment of malnutrition in males, 2 to 5 years
 
WHO infant growth percentiles, 0 to 24 months
 
WHO infant head circumference-for-age percentiles, 0 to 24 months
 
WHO infant length-for-age percentiles, 0 to 24 months
 
WHO infant weight-for-age percentiles, 0 to 24 months
 
WHO infant weight-for-length percentiles, 0 to 24 months
 
Wilson Score for Prediction of Difficult Intubation
 
Winters' Formula for Expected PCO2
 

Z Score to Percentile Estimation