Advanced Epinephrine Dose Calculator

Calculator Inputs

Scenario

Patient Group

Weight (kg)

Entered Concentration (mg/mL)

Preferred Repeat Start (minutes)

Target Infusion Dose (mcg/min)

Infusion Bag Drug Amount (mg)

Infusion Bag Volume (mL)

Optional Case Notes

Plotly Graph

The graph updates after calculation and visualizes the selected dosing pattern or infusion conversion range.

Example Data Table

Scenario	Patient Group	Weight	Reference Dose	Reference Volume	Notes
Anaphylaxis IM/SC	Pediatric	18 kg	0.18 mg	0.18 mL at 1 mg/mL	0.01 mg/kg, max 0.3 mg
Anaphylaxis IM/SC	Adult / ≥30 kg	72 kg	0.3 to 0.5 mg	0.3 to 0.5 mL at 1 mg/mL	Use label-supported range
Cardiac Arrest IV/IO	Pediatric	25 kg	0.25 mg	2.5 mL at 0.1 mg/mL	0.01 mg/kg, max 1 mg
Cardiac Arrest IV/IO	Adult	Fixed	1 mg	10 mL at 0.1 mg/mL	Repeat every 3 to 5 minutes
Bradycardia Infusion	Adult	N/A	5 mcg/min	75 mL/hr for 1 mg in 250 mL	Range reference 2 to 10 mcg/min

Formula Used

1) Volume from dose and concentration
Volume (mL) = Dose (mg) ÷ Concentration (mg/mL)

2) Pediatric anaphylaxis dose
Dose (mg) = 0.01 × Weight (kg), capped at 0.3 mg

3) Pediatric cardiac arrest dose
Dose (mg) = 0.01 × Weight (kg), capped at 1 mg

4) Infusion bag concentration
Concentration (mcg/mL) = [Drug amount (mg) × 1000] ÷ Bag volume (mL)

5) Pump rate conversion
mL/hr = [Target dose (mcg/min) ÷ Bag concentration (mcg/mL)] × 60

How to Use This Calculator

Select the clinical scenario.
Choose adult or pediatric patient group.
Enter weight when weight-based dosing applies.
Enter the concentration available at bedside.
For infusion math, enter bag drug amount, bag volume, and target mcg/min.
Press Calculate Dose to display the result above the form.
Review the graph, summary table, and example comparison.
Use the CSV or PDF buttons to export the current result.

Frequently Asked Questions

1. What is this calculator designed to do?

It estimates common epinephrine dosing values for anaphylaxis, cardiac arrest, and adult infusion conversion. It is meant for education and double-checking, not independent prescribing.

2. Does it replace hospital protocols?

No. Medication concentration, route, dilution, and repeat timing should always be verified against local emergency protocols, product labeling, and the treating clinician’s decision.

3. Why does the anaphylaxis result sometimes show a range?

For patients weighing 30 kg or more, labeled anaphylaxis dosing is a range of 0.3 mg to 0.5 mg. The calculator shows both endpoints instead of forcing one value.

4. Why is pediatric arrest volume shown at 0.1 mg/mL?

The standard algorithm expresses pediatric IV/IO arrest dosing using the 0.1 mg/mL concentration. This helps prevent decimal and dilution errors during emergency preparation.

5. Can I use custom concentrations?

Yes. The calculator lets you enter your bedside concentration, then converts the dose into milliliters for that specific strength. Always confirm the vial or syringe label before administration.

6. What does the infusion section calculate?

It converts a target dose in mcg/min into a pump rate in mL/hr using the bag concentration you entered. It also shows the equivalent rate range for 2 to 10 mcg/min.

7. What do the CSV and PDF buttons export?

The CSV exports the current result table as structured rows. The PDF button opens a print-friendly page so the browser can save the current report as a PDF.

8. Is this suitable for pediatric bedside use without review?

No. Pediatric vasoactive drug calculations are high risk. This tool should support review, not replace direct clinical verification by qualified staff using current emergency guidance.