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Absolute Neutrophil Count (ANC)
Neutropenia (after chemotherapy).
Open calculatorAPGAR Score
Assesses neonates 1 and 5 mins postpartum.
Open calculatorBicarbonate Deficit
<p>Calculates total body bicarb deficit.</p>
Open calculatorBMI Calculator (Body Mass Index and BSA)
Categorizes obesity, assists some med dosing.
Open calculatorCalcium Correction for Hypoalbuminemia and Hyperalbuminemia
Corrects Ca for hypoalbuminemia or hyperalbuminemia.
Open calculatorFramingham Risk Score for Hard Coronary Heart Disease
<p>Heart attack risk.</p>
Open calculatorCHADS₂ Score for Atrial Fibrillation Stroke Risk
Stroke risk in AFib.
Open calculatorCreatinine Clearance (Cockcroft-Gault Equation)
Estimates creatinine clearance (kidney function).
Open calculatorCorrected QT Interval (QTc)
Corrects QT interval.
Open calculatorSodium Correction for Hyperglycemia
Calculates Na in hyperglycemia.
Open calculatorFractional Excretion of Sodium (FENa)
Prerenal or intrinsic kidney failure.
Open calculatorFractional Excretion of Urea (FEUrea)
<p>Similar to FENa; for pts on diuretics.</p>
Open calculatorGlasgow Coma Scale (GCS)
Objective level of consciousness.
Open calculatorLDL Calculated
<p>From Total Chol, HDL and Trigs.</p>
Open calculatorMaintenance Fluids Calculations
Fluid maintenance.
Open calculatorMean Arterial Pressure (MAP)
Calculates MAP.
Open calculatorMDRD GFR Equation
For CKD patients (not for AKI).
Open calculatorMELD Na (UNOS/OPTN)
Liver transplant planning + Na.
Open calculatorParkland Formula for Burns
Fluid requirements after burns.
Open calculatorSerum Osmolality/Osmolarity
<p>Screens for toxic alcohols and more.</p>
Open calculatorSodium Deficit in Hyponatremia
Total sodium missing in hyponatremia.
Open calculatorStool Osmolar/Osmotic Gap
Chronic Diarrhea: Osmotic vs Secretory.
Open calculatorCentor Score (Modified/McIsaac) for Strep Pharyngitis
Strep throat diagnosis and treatment.
Open calculatorFree Water Deficit in Hypernatremia
Free water deficit in hypernatremia or dehydration.
Open calculatorWells' Criteria for Pulmonary Embolism
Risk of PE.
Open calculatorWinters' Formula for Metabolic Acidosis Compensation
Expected pCO₂ if pure metabolic acidosis.
Open calculatorA-a O₂ Gradient
Shunting and V/Q Mismatch.
Open calculatorCURB-65 Score for Pneumonia Severity
Mortality in CAP: inpatient vs outpatient.
Open calculatorPERC Rule for Pulmonary Embolism
Clinically rules out PE (<2%).
Open calculatorABCD² Score for TIA
Stroke risk after TIA: inpt vs outpt.
Open calculatorWells' Criteria for DVT
Risk of DVT based on clinical criteria.
Open calculatorOttawa Knee Rule
Sensitive; rules out imaging in some.
Open calculatorIntracerebral Hemorrhage (ICH) Score
Mortality in ICH.
Open calculatorHunt & Hess Classification of Subarachnoid Hemorrhage
Mortality in SAH.
Open calculatorSodium Correction Rate in Hyponatremia and Hypernatremia
<p>Recommends hyponatremia/hypernatremia treatment.</p>
Open calculatorAcetaminophen Overdose and NAC Dosing
NAC Dosing for acetaminophen OD.
Open calculatorCanadian CT Head Injury/Trauma Rule
Very sensitive, rules out imaging in many.
Open calculatorAlvarado Score for Acute Appendicitis
Appendicitis diagnosis.
Open calculatorTIMI Risk Index
<p>Mortality in ACS.</p>
Open calculatorHepatic Encephalopathy Grades/Stages
West Haven Criteria: Severity to guide treatment.
Open calculatorWestley Croup Score
Croup severity.
Open calculatorCanadian C-Spine Rule
More sens/spec, but more complex, than NEXUS.
Open calculatorNIH Stroke Scale/Score (NIHSS)
Quantifies stroke severity.
Open calculatorLight's Criteria for Exudative Effusions
Pleural effusion: exudative vs transudative.
Open calculatorCHA₂DS₂-VASc Score for Atrial Fibrillation Stroke Risk
Stroke risk in afib; better than CHADS₂.
Open calculatorHAS-BLED Score for Major Bleeding Risk
Bleeding risk with AFib anticoagulation.
Open calculatorSIRS, Sepsis, and Septic Shock Criteria
Defines severity of sepsis and septic shock.
Open calculatorABC Score for Massive Transfusion
Need for massive transfusion; calculated before labs.
Open calculatorInjury Severity Score (ISS)
Standardizes severity of trauma.
Open calculatorSimplified PESI (Pulmonary Embolism Severity Index)
Mortality from PE.
Open calculatorEstimated Average Glucose (eAG) From HbA1C
Estimates avg gluc from HbA1C.
Open calculatorPulmonary Embolism Severity Index (PESI)
Mortality from PE.
Open calculatorShock Index
Sensitive indicator of occult shock.
Open calculatorCorrected Reticulocyte Percentage/Reticulocyte Production Index (RPI)
Adequacy of marrow response to anemia.
Open calculatorSerum Anion Gap
Evaluates states of metabolic acidosis.
Open calculatorOttawa Ankle Rule
Rules out clinically significant foot and ankle fractures.
Open calculatorTHRIVE Score for Stroke Outcome
Prognosis after stroke; incorporates NIHSS.
Open calculatorATRIA Bleeding Risk Score
Bleeding risk from warfarin.
Open calculatorPHQ-9 (Patient Health Questionnaire-9)
Degree of depression severity.
Open calculatorGAD-7 (General Anxiety Disorder-7)
Severity of anxiety.
Open calculatorCAGE Questions for Alcohol Use
Screens for excessive drinking and alcoholism.
Open calculatorAdult Self-Report Scale (ASRS v1.1) for ADHD
Diagnoses adult ADHD.
Open calculatorDuke Criteria for Infective Endocarditis
Diagnose endocarditis.
Open calculatorSgarbossa's Criteria for MI in Left Bundle Branch Block
<p>Diagnoses acute MI in LBBB.</p>
Open calculatorBISAP Score for Pancreatitis Mortality
<p>Mortality in pancreatitis.</p>
Open calculatorCIWA-Ar for Alcohol Withdrawal
Objectifies alcohol withdrawal severity.
Open calculatorRevised Cardiac Risk Index for Pre-Operative Risk
Risk of major cardiac event from surgery.
Open calculatorGeneva Score (Revised) for Pulmonary Embolism
Risk of PE.
Open calculatorHEART Score for Major Cardiac Events
6-week risk of cardiac event.
Open calculatorMELDNa/MELD-Na Score for Liver Cirrhosis
MELD + Na: More accurate than MELD.
Open calculatorModified NIH Stroke Scale/Score (mNIHSS)
Shortened, validated version of the NIHSS.
Open calculatorOpioid Risk Tool (ORT) for Narcotic Abuse
Risk of narcotic abuse/misuse.
Open calculatorCRUSADE Score for Post-MI Bleeding Risk
Bleeding risk after NSTEMI.
Open calculatorHEMORR₂HAGES Score for Major Bleeding Risk
Bleeding risk in elderly AF.
Open calculatorRIETE Score for Risk of Hemorrhage in Pulmonary Embolism Treatment
Bleeding risk from PE anticoagulation.
Open calculator4Ts Score for Heparin-Induced Thrombocytopenia
HIT vs other causes of thrombocytopenia.
Open calculatorHIT Expert Probability (HEP) Score for Heparin-Induced Thrombocytopenia
Likelihood of HIT.
Open calculatorKocher Criteria for Septic Arthritis
Septic arthritis vs transient synovitis in pediatric inflamed hip.
Open calculatorSimplified Motor Score (SMS)
Simplified GCS for head trauma.
Open calculatorHamilton Anxiety Scale
Trends anxiety over time.
Open calculatorMajor Depression Index (MDI)
Screens for depression.
Open calculatorAPACHE II Score
Estimates ICU mortality.
Open calculatortPA Contraindications for Ischemic Stroke
Inclusion and exclusion criteria for tPA.
Open calculatorPediatric SIRS, Sepsis, and Septic Shock Criteria
Severity of sepsis and septic shock.
Open calculatorCOWS Score for Opiate Withdrawal
Severity of opiate withdrawal.
Open calculatorAUDIT-C for Alcohol Use
Screens for at-risk drinkers, not necessarily dependence.
Open calculatorSteroid Conversion Calculator
Steroid dosing equivalencies.
Open calculatorUrine Anion Gap
Detects urine acidosis for metabolic acidosis eval.
Open calculatorCHA₂DS₂-VA Score for Atrial Fibrillation Stroke Risk
Stroke risk in atrial fibrillation patients.
Open calculatorInfant Scalp Score
TBI risk in head-injured infants.
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