Pediatric Medication Calculation Overview

 

This module presents a step-by-step process for calculating medications using various routes.

For IVP, IM, SQ, NG, GT or PO medications Use steps 1-4.

For IVPB medications, use steps 1- 6.

 

Step 1: DOSAGE RANGE (MG/KG/DAY, MG/KG/DOSE, etc.)

Locate the recommended minimum and maximum dosage range from a trusted source.

 

Step 2: TOTAL DAILY DOSE (MG/DAY, mcg/day etc.)

Calculate the MG/DAY by adding up all doses given in one day. SKIP this step if recommended dosage range is mg/kg/DOSE.

 

Step 3: DOSE CALCULATION (MIN, MAX, ACTUAL)

Calculate the MINIMUM, MAXIMUM and ACUTAL DOSAGE using the values from the recommended dosage range and the medication order. The actual dosage should be between the minimum and maximum.

 

Step 4: CONCENTRATION (MG/ML)

Calculate the amount to draw up from the vial (or verify in a prefilled syringe) of the available solution.

 

Step 5: DILUTION (MG/ML)

Calculate the amount of extra fluid needed to add to the medication. Consider various factors when calculating this volume (see detailed instructions).

 

Step 6: IV PUMP RATE (ML/HR)

Calculate the pump rate based on the medication volume after dilution and infusion time (i.e. 20-30 minutes). Consider various factors when calculating this rate (see detailed instructions).

 

 

This module provides you with various tools to learn more about each of these steps and practice your calculations. On the following pages you will find the following:

       Detailed Instructions

       Examples using 3 different methods: Dimensional Analysis, Ratio Proportion, and Logic

       Fill-in style worksheet

       Quick Reference Sheet

       Conversions Sheet

       Practice Quiz

       Practice Quiz Answer Sheet