RxTray

Complete clinical library

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Calculators, clinical scores, pharmacokinetics, and medication-safety references—organized around the job you are doing.

31 of 31 available tools
Calculator

Creatinine Clearance

Cockcroft–Gault with transparent weight methods

Renal & body sizeOpen →
CalculatorNew

CKD-EPI 2021 eGFR

Race-free adult creatinine equation

Renal & body sizeOpen →
Calculator

Body Surface Area

Mosteller, Du Bois, and Haycock

Renal & body sizeOpen →
Calculator

Body Size & Dosing Weight

Actual, Devine IBW, and AdjBW 0.4

Renal & body sizeOpen →
Calculator

Two-Level Elimination

Elimination rate, half-life, and projection

Drug dosing & PKOpen →
Calculator

Intermittent Infusion PK

Cmax, Cmin, Vd, clearance, and AUC24

Drug dosing & PKOpen →
Calculator

Vancomycin Two-Level AUC

Restricted steady-state first-order model

Drug dosing & PKReview limits →
Calculator

Initial Vancomycin Level Prediction

First dose separated from steady state

Drug dosing & PKReview limits →
Calculator

Gentamicin & Tobramycin PK

Two-level conventional PK and regimen simulation

Drug dosing & PKReview limits →
Calculator

Amikacin Patient-Specific PK

Two-level conventional PK and regimen simulation

Drug dosing & PKReview limits →
Calculator

Extended-Interval Initial Regimen

Gent/tobra 7 mg/kg and amikacin 15 mg/kg

Drug dosing & PKReview limits →
Calculator

Hartford Random-Level Assessment

6–14-hour level with protocol-concordant dose

Drug dosing & PKReview limits →
Calculator

Corrected Sodium

Katz and Hillier shown side by side

Labs & electrolytesOpen →
Calculator

Albumin-adjusted Calcium

Restricted estimate with mandatory evidence warning

Labs & electrolytesReview limits →
Calculator

Anion Gap

With or without potassium and albumin correction

Labs & electrolytesOpen →
Calculator

Serum Osmolality & Gap

Measured gap and two ethanol methods

Labs & electrolytesOpen →
Calculator

Absolute Neutrophil Count

Segments plus optional bands

Labs & electrolytesOpen →
Calculator

QTc Comparison

Fridericia, Framingham, Hodges, and Bazett

Risk & severityOpen →
Clinical scoreNew

CHA₂DS₂-VASc

Stroke-risk factors in atrial fibrillation

Risk & severityReview limits →
Clinical scoreNew

HAS-BLED

Modifiable bleeding-risk factors in atrial fibrillation

Risk & severityReview limits →
Clinical scoreNew

Wells Score for PE

Pretest probability framework for suspected PE

Risk & severityReview limits →
Clinical scoreNew

CURB-65

Community-acquired pneumonia severity

Risk & severityReview limits →
Clinical scoreNew

qSOFA

Three-variable risk flag in suspected infection

Risk & severityReview limits →
Clinical scoreNew

HEART Score

Chest-pain risk factors with assay-aware troponin

Risk & severityReview limits →
Clinical scoreNew

PERC Rule

Eight PE rule-out criteria for clinician-assessed low risk

Risk & severityReview limits →
Clinical scoreNew

Glasgow Coma Scale

Eye, verbal, and motor response components

Risk & severityOpen →
Clinical scoreNew

SOFA Score

Six-system Sequential Organ Failure Assessment

Risk & severityReview limits →
Clinical scoreNew

Child-Pugh Score

Cirrhosis functional reserve and class

Risk & severityReview limits →
Reference

IV Medication Compatibility with LR

Nurse quick chart plus pharmacist evidence view

IV medication safetyReview limits →
Reference

Extravasation Intervention Chart

Warm or cold, antidotes, and critical actions

IV medication safetyReview limits →
Reference

Beta-lactam Cross-Sensitivity

Reaction phenotype and R1 side-chain relationships

IV medication safetyReview limits →

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