Medical Calculators
Medical calculators assist healthcare professionals and users in estimating medical values and clinical measurements. They provide reliable calculations for medical assessments and health monitoring. These tools support informed healthcare decisions and improve accuracy. Suitable for students, practitioners, and patients.
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Calculate mean arterial pressure (MAP) from systolic and diastolic blood pressure. View the estimated pressure and general category.
Mean Arterial Pressure
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Estimate maintenance fluids using body weight and the 4-2-1 hourly rule. Calculate maintenance rates and a weight-based fluid bolus.
Maintenance Fluids
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Calculate serum anion gap using sodium, chloride, and bicarbonate. View corrected results, delta gap, delta ratio, and preliminary interpretation.
Serum Anion Gap
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Estimate MELD and MELD-Na scores using creatinine, bilirubin, INR, and sodium. View calculated scores and estimated mortality category.
Meld Na (UNOS/OPTN)
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Calculate fractional excretion of sodium (FENa) using serum and urine sodium and creatinine. View the percentage and general interpretation.
Fractional Excretion of Sodium
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Estimate creatinine clearance using the Cockcroft-Gault equation, age, sex, weight, and serum creatinine. View adjusted-weight estimates in mL/min.
Creatinine Clearance
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Calculate corrected sodium levels in hyperglycemia using the Katz and Hillier correction factors.
Sodium Correction for Hyperglycemia
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Calculate the FIB-4 score using age, AST, ALT, and platelet count to assess liver fibrosis risk.
Fibrosis-4 (FIB-4)
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Estimate 10-year ASCVD risk using cholesterol, blood pressure, age, and other cardiovascular risk factors.
ASCVD
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Estimate the free water deficit using body weight, sodium levels, age, and sex.
Free Water Deficit Hypernatremia
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Assess inhalation injury severity by selecting bronchoscopic findings to determine the injury grade.
Inhalation Injury
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Calculate age-adjusted ESR reference limits based on age and sex, with a fixed CRP reference value.
Age-Adjusted ESR/CRP
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Calculate absolute neutrophil count (ANC) using white blood cell count, neutrophils, and band percentages.
Absolute Neutrophil Count
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Calculate the Eat, Sleep, Console (ESC) score from eating, sleeping, and consolability responses.
Eat, Sleep, Console (ESC)
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Calculate the OESIL score for syncope using age, medical history, and ECG findings.
OESIL Score for Syncope
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Calculate the ARISCAT score to estimate postoperative pulmonary complication risk.
ARISCAT Score
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Calculate the Wells score using clinical findings to assess the likelihood of pulmonary embolism.
Wells' Criteria
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Calculate the APGAR score from activity, pulse, grimace, appearance, and respiration assessments.
APGAR Score
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Estimate five-year type 2 diabetes risk using health, lifestyle, family history, and body measurement factors.
Australian Type 2 Diabetes Risk
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Calculate a gout assessment score using symptoms, medical history, joint findings, and uric acid levels.
Gout Diagnosis
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Calculate venous blood pH from bicarbonate and carbon dioxide values using the Henderson-Hasselbalch formula.
Venous Blood pH
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Calculate the Glasgow Coma Scale (GCS) by adding eye, verbal, and motor response scores.
Glasgow Coma Scale
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Calculate the SOFA score from organ-function measurements to assess the degree of organ dysfunction.
SOFA Score
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Calculate the PHQ-2 screening score from two questions about depressive symptoms.
Depression Screening by PHQ-2
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Calculate the GAD-7 score from seven responses to screen for anxiety symptom severity.
GAD-7 Calculator
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Calculate the CIWA-Ar score from alcohol-withdrawal symptom ratings to support clinical assessment.
CIWA Calculator
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Calculate the Alvarado score from selected symptoms, signs, and laboratory findings associated with appendicitis.
Alvarado Score (appendicitis)
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Calculate the CURB-65 score using clinical criteria to help assess pneumonia severity.
CURB-65 (pneumonia severity)
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Calculate the PESI score from selected clinical factors to estimate risk in pulmonary embolism.
PESI Score (pulmonary embolism risk)
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Calculate estimated serum osmolality using the selected blood chemistry values and units.
Serum Osmolality
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Estimate pediatric blood volume using body weight and the selected age-related assumptions.
Pediatric Blood Volume
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Calculate an electrolyte correction estimate from the entered laboratory and clinical values.
Electrolyte Correction
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Calculate a medication dose from the prescribed inputs and selected dosing units; verify with a qualified clinician.
Dosage Calculator
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Calculate an estimated pediatric dose from the entered measurements and dosing instructions; verify clinically.
Pediatric Dose
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Estimate a baby’s growth percentile using the selected measurement, age, and reference information.
Baby Percentile
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Estimate cardiovascular disease risk using the clinical variables required by the selected risk method.
CVD Risk
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Calculate the qSOFA score from selected clinical criteria to support assessment of possible poor outcomes in infection.
qSOFA Score
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Calculate glucose infusion rate from glucose concentration, infusion rate, and body weight inputs.
Glucose Infusion Rate
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Calculate the HAS-BLED score to help assess bleeding risk factors in patients considered for anticoagulation.
HAS-BLED
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Calculate the NEDOCS score using emergency department conditions to estimate crowding.
NEDOCS Calculator
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Calculate the Injury Severity Score (ISS) from the severity ratings of selected injuries.
Injury Severity Score