Dosage Calculation and Administration

Nurse Sarah demonstrates how to solve magnesium sulfate dosage calculations using the ratio and proportion method. The video covers setting up known and unknown ratios, solving for volume, and converting to milliliters per hour. It includes examples of loading and maintenance doses, with a focus on ensuring unit consistency. Additional resources for practice are provided.

What is the primary method used in this video to solve magnesium sulfate dosage calculations?

• Cross-Multiplication

• Desired Over Have

• Ratio and Proportion

• Dimensional Analysis

When setting up a known ratio, what information do you use?

• The dose you have and the volume you have

• The dose ordered and the volume you have

• The dose you have and the volume ordered

• The dose ordered and the volume ordered

Why is it important to ensure units match before solving a dosage calculation problem?

• To avoid incorrect dosage calculations

• To simplify the calculation process

• To ensure the ratios are proportionate

• To make cross-multiplication easier

In the first problem, what is the calculated volume that needs to be administered?

• 150 mL

• 100 mL

• 50 mL

• 200 mL

How do you convert milliliters per minute to milliliters per hour?

• Multiply by 30

• Divide by 60

• Multiply by 60

• Divide by 30

What is the maintenance dose ordered in the second problem?

• 2 grams per hour

• 4 grams per hour

• 6 grams per hour

• 1 gram per hour

In the second problem, what is the calculated milliliters per hour for the maintenance dose?

• 100 mL per hour

• 50 mL per hour

• 25 mL per hour

• 75 mL per hour

For the final problem, what is the loading dose ordered?

• 2 grams over 20 minutes

• 6 grams over 20 minutes

• 8 grams over 20 minutes

• 4 grams over 20 minutes

What is the calculated milliliters per hour for the loading dose in the final problem?

• 150 mL per hour

• 450 mL per hour

• 300 mL per hour

• 600 mL per hour

What is the calculated milliliters per hour for the maintenance dose in the final problem?

• 50 mL per hour

• 25 mL per hour

• 75 mL per hour

• 100 mL per hour