Calculator Form
The page uses a single-column structure. The form below switches to three columns on large screens, two on medium screens, and one on mobile.
Plotly Graph
The graph compares raw calculated volume with the final capped and rounded volume across patient weights.
Example Data Table
Illustrative values only. Verify every real dose against local pediatric imaging protocol before use.
| Weight (kg) | Raw Volume (mL) | Final Volume (mL) | Iodine Load (mg/kg) |
|---|---|---|---|
| 5 | 7.50 | 7.50 | 450.00 |
| 10 | 15.00 | 15.00 | 450.00 |
| 20 | 30.00 | 30.00 | 450.00 |
| 35 | 52.50 | 52.50 | 450.00 |
| 50 | 75.00 | 75.00 | 450.00 |
Formula Used
How to Use This Calculator
- Enter the patient reference, study name, age, and current weight.
- Type the local protocol dose in mL/kg and the contrast concentration in mg/mL.
- Add optional minimum and maximum volume limits from your approved protocol.
- Select a rounding increment that matches preparation or syringe workflow.
- Enter saline flush ratio, injector rate, syringe size, and any local iodine threshold.
- Mark workflow flags if renal concern, reaction history, dehydration, or neonatal review applies.
- Press Calculate Dose to show the result above the form.
- Review the alerts, graph, and example table, then export the summary as CSV or PDF if needed.
Frequently Asked Questions
1) What does this calculator estimate?
It estimates contrast volume, iodine load, flush volume, injectate total, and timing from user-entered protocol values. It does not pick the correct pediatric protocol for you.
2) Does the calculator decide the right pediatric dose?
No. It only applies the protocol numbers you enter. Clinical teams must confirm study type, patient condition, contraindications, and approved departmental dosing rules.
3) Why is concentration entered in mg/mL?
Concentration lets the tool estimate total iodine exposure and iodine per kilogram. That helps compare different vial strengths and review user-set thresholds.
4) Why use minimum and maximum limits?
Many departments apply floor and cap values so small or large patients are kept within approved operational bounds. The calculator shows when a cap or minimum changed the raw result.
5) What is the rounding increment for?
Rounding helps match practical preparation steps, syringe markings, or protocol conventions. The result section clearly notes when rounding adjusted the bounded volume.
6) Can I use this for oral or MRI contrast?
Only if your department intentionally uses the same input logic and units. Different agents, routes, and studies can require different formulas and safety checks.
7) Why does the calculator show saline flush and injection time?
Those values help planning and documentation. They support injector setup, syringe preparation, and workflow discussion, but they do not replace protocol approval.
8) Should I chart the output directly?
Use it as a cross-check and documentation aid. Final charting should reflect the verified clinical order, actual administered amount, and departmental policy.