Dimensional analysis

Definition

Dimensional analysis is a mathematical technique used to convert one unit of measure to another. It ensures accurate calculations in drug dosages by using conversion factors.

5 Must Know Facts For Your Next Test

1. Dimensional analysis involves multiplying the original measurement by conversion factors until the desired unit is achieved.
2. It helps prevent medication errors by ensuring precise dosage calculations.
3. Units must cancel out correctly at each step for the final answer to be accurate.
4. Commonly used conversion factors include weight (mg, g, kg) and volume (mL, L).
5. Always double-check that the final units match what is required for the dosage.

Review Questions

• What is the primary purpose of dimensional analysis in dosage calculations?
• How do you ensure that your units are correctly converted using dimensional analysis?
• Why is it important to double-check your final units in a dimensional analysis calculation?

Related terms

Conversion Factor: A ratio used to convert one unit of measure to another.

Dosage Calculation:

The process of determining the appropriate amount of medication based on various factors.

Medication Error: Any preventable event that may cause or lead to inappropriate medication use or patient harm.