4Ts Score for Heparin-Induced Thrombocytopenia

Differentiates patients with HIT from those with other causes of thrombocytopenia

ABC Score for Massive Transfusion

Predicts need for massive transfusion in trauma patients

A-a O2 Gradient

Assesses for degree of shunting and V/Q mismatch

ABC/2 Formula for Intracerebral Hemorrhage Volume

Predicts volume of intracranial hemorrhage from CT measurements

ABCD2 Score for TIA

Estimates the risk of stroke after a TIA

Absolute Neutrophil Count (ANC)

Frequently used to assess neutropenic fever in chemotherapy patients

Absolute Reticulocyte Count & Reticulocyte Index

Assesses appropriate response to anemia, frequently in Sickle Cell Disease patients

Acetaminophen Overdose and NAC Dosing

Calculates PO/IV NAC dosing for acetaminophen overdose (and nomogram to determine toxic 4 hour level)

Anion Gap

Evaluates states of metabolic acidosis

APACHE II Score

Estimates ICU mortality

APGAR Score

Assesses neonates 1 and 5 minutes after birth

Arterial Blood Gas (ABG) Analyzer

Interprets ABG

Barnes Jewish Hospital Stroke Dysphagia Screen

Assesses ability to swallow without aspiration after stroke

Basal Energy Expenditure

Calculates daily energy expenditure

Bicarbonate Deficit

Calculates the total body bicarbonate deficit

BISAP Score for Pancreatitis Mortality

Predicts mortality risk in pancreatitis with fewer variables than Ranson's

BMI and BSA

Estimates the Body Mass Index and Body Surface Area

Calcium Correction for Hypoalbuminemia

Calculates a corrected calcium level for patients with hypoalbuminemia

CHA2DS2-VASc Score for Atrial Fibrillation Stroke Risk

Calculates stroke risk for patients with atrial fibrillation, possibly better than the CHADS2 score

CHADS2 Score for Atrial Fibrillation Stroke Risk

Estimates stroke risk in patients with atrial fibrillation

Child-Pugh Score for Cirrhosis Mortality

Estimates cirrhosis severity

CIWA-Ar for Alcohol Withdrawal

Objectifies alcohol withdrawal symptoms to help guide therapy

Confusion Assessment Method for the ICU (CAM-ICU)

Monitors delirium in ICU patients

Creatinine Clearance (Cockcroft-Gault Equation)

Calculates CrCl according to the Cockcroft-Gault equation

CRUSADE Score for Post-MI Bleeding Risk

Stratifies bleeding risk after NSTEMI

CURB-65 Severity Score

Estimates mortality of community-acquired pneumonia to help determine inpatient vs outpatient treatment

DRAGON Score for Post-TPA Stroke Outcome

Predicts 3 month outcome in ischemic stroke patients receiving tPA

Duke Criteria for Infective Endocarditis

Diagnostic criteria for infective endocarditis

Emergency Heart Failure Mortality Risk Grade (EHMRG)

Estimates 7-day mortality of emergency CHF patients

Fractional Excretion of Sodium (FENa)

Determines if renal failure is due to pre-renal, post-renal, or intrinsic renal pathology

Fractional Excretion of Urea (FEUrea)

Determines the cause of renal failure Similar to the FENa, but can be used on patients on diuretics

Free Water Deficit in Hypernatremia

Calculates free water deficit by estimated total body water

Geneva Score (Revised) for Pulmonary Embolism

Objectifies risk of PE, like Wells' score

Glasgow Alcoholic Hepatitis Score

Predicts mortality in patients with alcoholic hepatitis by lab results and age

Glasgow Coma Scale/Score (GCS)

Coma severity based on Eye (4), Verbal (5), and Motor (6) criteria

Glasgow-Blatchford Bleeding Score (GBS)

Stratifies Upper GI bleeding patients who are 'low-risk' and candidates for outpatient management

HAS-BLED Score for Major Bleeding Risk

Estimates risk of major bleeding for patients on anticoagulation for atrial fibrillation

HAT (Hemorrhage After Thrombolysis) Score for Predicting Post-TPA Hemorrhage

Assesses hemorrhage risk after tPA

HEART Score for Major Cardiac Events

Predicts 6-week risk of major adverse cardiac event

HEMORR2HAGES Score for Major Bleeding Risk

Quantifies risk of hemorrhage in elderly patients with AFib

Hepatic Encephalopathy Grades/Stages

Defines criteria for the stages of hepatic encephalopathy based on West Haven Criteria

HIT Expert Probability (HEP) Score for Heparin-Induced Thrombocytopenia

Predicts likelihood of heparin-induced thrombocytopenia

HIV Needle Stick Risk Assessment Stratification Protocol (RASP)

Quantifies HIV exposure risk by source, exposure type and need for prophylaxis

Hunt & Hess Classification of Subarachnoid Hemorrhage

Classifies severity of subarachnoid hemorrhage to predict mortality

Ideal Body Weight

Calculates ideal body weight by the Devine formula

Injury Severity Score (ISS)

Standardizes severity of traumatic injury based on worst injury of 6 body systems

Intracerebral Hemorrhage (ICH) Score

Estimates mortality from CT findings in intracerebral hemorrhage

King’s College Criteria for Acetaminophen Toxicity

Recommends who should be immediately referred for liver transplant

Light’s Criteria for Exudative Effusions

Provides Light's Criteria to help determine if pleural fluid is exudative

Lille Model for Alcoholic Hepatitis

Predicts mortality in patients with Alcoholic Hepatitis not responding to steroid therapy

LRINEC Score for Necrotizing Soft Tissue Infection

Screens for necrotizing soft tissue infections

Maddrey’s Discriminant Function for Alcoholic Hepatitis

Suggests which patients with alcoholic hepatitis may have a poor prognosis and benefit from steroid administration

Maintenance Fluids Calculations

Calculates pediatric maintenance fluid requirements by weight

Mangled Extremity Severity Score (MESS Score)

Estimates viability of an extremity after trauma, to determine need for salvage vs empiric amputation

MDRD GFR Equation

Estimates glomerular filtration rate based on creatinine and patient characteristics

Mean Arterial Pressure (MAP)

Calculates mean arterial pressure

MELD Score (Model For End-Stage Liver Disease) (12 and older)

Calculates the MELD score to quantify end-stage liver disease for transplant planning

Modified Early Warning Score (MEWS) for Clinical Deterioration

Determines the degree of illness of a patient

Modified NIH Stroke Scale/Score (mNIHSS)

Shortened, validated version of the NIHSS

Modified Rankin Scale for Neurologic Disability

Measures degree of disability/dependence after a stroke

National Early Warning Score (NEWS)

Determines the degree of illness of a patient and prompts critical care intervention

NIH Stroke Scale/Score (NIHSS)

Calculates the NIH Stroke Scale for quantifying stroke severity

Oxygenation Index

Predicts outcomes, especially in pediatric patients; helps determine need for ECMO

Padua Prediction Score for Risk of VTE

Determines anticoagulation need in hospitalized patients by risk of VTE

Parkland Formula for Burns

Calculates fluid requirements for burn patients in a 24-hour period

Pediatric Endotracheal Tube (ETT) Size

Estimates ET tube size based on age

Pediatric Ins and Outs (per kg and per hour)

Calculates fluid status in volume per weight & volume per weight per time, for pediatrics

Pediatric SIRS, Sepsis, and Septic Shock Criteria

Defines the severity of sepsis and septic shock for pediatric patients

PELD Score (Pediatric End-Stage Liver Disease) (younger than 12)

Calculates the pediatric version of the MELD score for liver cirrhosis severity and transplant planning

PERC Rule for Pulmonary Embolism

Rules out PE if no criteria are present and pre-test probability is <15%

Phenytoin Correction for Albumin / Renal Failure

Corrects a phenytoin serum level for renal failure and/or hypoalbuminemia

POMPE-C Tool for Pulmonary Embolism Mortality

Predicts mortality for cancer patients with PE

PSI/PORT Score: Pneumonia Severity Index for CAP

Estimates mortality for adult patients with community-acquired pneumonia

Pulmonary Embolism Severity Index (PESI)

Predicts 30-day outcome of patients with pulmonary embolism using 11 clinical criteria

Ranson’s Criteria for Pancreatitis Mortality

Estimates mortality of patients with pancreatitis, based on initial and 48-hour lab values

Revised Trauma Score

Quantifies severity of trauma injuries based on GCS, blood pressure, and respiratory rate

Richmond Agitation-Sedation Scale (RASS)

Ranks agitation and possibility for sedation

RIETE Score for Risk of Hemorrhage in Pulmonary Embolism Treatment

Determines the risk of major bleeding during anticoagulant therapy for pulmonary embolism

San Francisco Syncope Rule

Defines high-risk criteria for patients with syncope

SEDAN Score for Post-tPA Hemorrhage

Predicts risk of sICH after tPA

Sequential Organ Failure Assessment (SOFA) Score

Predicts ICU mortality based on lab results and clinical data

Serum Osmolality/Osmolarity

Calculates expected serum osmolarity, for comparison to measured osmolarity to detect unmeasured compounds in the serum

Sgarbossa’s Criteria for MI in Left Bundle Branch Block

Criteria to diagnose acute MI in patients with prior LBB

Shock Index

May be a more sensitive indicator of occult shock, especially in trauma or acute hemorrhage

Simplified Motor Score (SMS)

Simplifies assessment of head trauma patients compared to the GCS

Simplified PESI (Pulmonary Embolism Severity Index)

Predicts 30-day outcome of patients with PE, with fewer criteria than the original PESI

SIRS, Sepsis, and Septic Shock Criteria

Defines the severity of sepsis and septic shock

Sodium Correction for Hyperglycemia

Calculates the actual sodium level in patients with hyperglycemia

Sodium Correction Rate in Hyponatremia

Calculates recommended fluid type, rate and volume to correct hyponatremia slowly (or more rapidly if seizing)

Sodium Deficit in Hyponatremia

Calculates sodium quantity missing in hyponatremia

Steroid Conversion Calculator

Converts steroid dosages using dosing equivalencies

Subtle Anterior STEMI Calculator

Differentiates early repolarization from anterior STEMI

Surgical Apgar Score (SAS) for Post-Operative Risk

Predicts post-operative risk of major complication, including death

TASH Score (Trauma Associated Severe Hemorrhage)

Predicts the need for massive transfusion based on clinical and laboratory data

THRIVE Score for Stroke Outcome

Estimates prognosis after an acute ischemic stroke

TIMI Risk Index

Provides mortality estimate in patients with ACS using only blood pressure, heart rate, and age

TIMI Risk Score for STEMI

Estimates mortality in patients with STEMI

TPA Contraindications for Ischemic Stroke

Provides inclusion/exclusion criteria when deciding to use tPA on a patient with acute ischemic stroke

Urine Anion Gap

Detects urine acidosis for evaluation of non-gap metabolic acidosis

Urine Output and Fluid Balance

Calculates urine output over a 24-hour period

Wells’ Criteria for Pulmonary Embolism

Objectifies risk of pulmonary embolism