Activity Instructions

Information in this module will reflect content presented in Henke’s Med- Math Chapter 8.

There are 4 steps to follow to complete these calculations

1. Find the **weight for the patient in kilograms** – *note that when the weight has ounces, you must convert this to pounds before converting to kilograms*

2. Use this finding to **calculate the safe dose for the medication** (found in a reference such as a drug book or app) – n*ote that sometimes this dose is written as the amount given at each dose and sometimes it is written as the amount given in a 24-hour period*

3. **Compare the safe dose with the ordered dose** to determine if it is safe to administer the amount ordered – *note that calculations may need to be done to determine the comparison is equal (both are per dose or per 24-hour amount)*

4. If the amount is safe, **calculate the amount to be given for the** **dose ordered** – *note that you administer the amount ordered, not the amount calculated as safe*

Review the following video about Weight Based Medication Calculations

https://www.youtube.com/watch?v=ViGS2d8kl8k

In the Student Resources for the “Animations” and view the following videos:

Chapter 8:

– Calculations in Action: Math 59: Milligrams per Kilogram Formula

– Calculations in Action: Math 60: Milligrams per Kilogram in Ratio and Proportions

– Calculations in Action: Math 61: Milligrams per Kilogram in Dimensional Analysis

– Calculations in Action: Math 66: IVPB Formula

– Calculations in Action: Math 67: IVPB in Ratio and Proporitons

– Calculations in Action: MAth 68: IVPB in Dimensional Analysis

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Below is an image to help remember medication math calculations