Pediatric Weight Errors and Resultant Medication Dosing Errors in the Emergency Department

Area of Science:

• Pediatric Emergency Medicine
• Clinical Pharmacy
• Patient Safety

Background:

• Accurate pediatric weight measurement is essential for correct medication dosing.
• Medication dosing errors can arise from inaccuracies in recorded patient weight.

Purpose of the Study:

• To determine the frequency and impact of weight errors in pediatric emergency departments.
• To compare weight error rates across a children's hospital and general hospitals.

Main Methods:

• Analysis of 79,000 emergency department encounters for children under 5 years.
• Utilized electronic medical records and retrospective chart reviews to identify weight errors.
• Identified potential errors using weight percentiles and confirmed through chart review.

Main Results:

• Weight errors occurred in 0.63% of encounters on average across three institutions.
• A significant proportion of weight errors (34% on average) resulted in medication dosing errors.
• Common errors included kg/lb confusion and decimal placement mistakes; children's hospital did not show significantly lower error rates.

Conclusions:

• While uncommon, weight errors in pediatric emergency settings frequently lead to medication dosing errors.
• These errors pose a risk of patient harm, highlighting the need for robust weight verification processes.