Medication errors recovered by emergency department pharmacists.

Area of Science:

• Pharmacology
• Patient Safety
• Health Services Research

Background:

• Medication errors in emergency departments (EDs) pose a significant risk to patient safety.
• The role of pharmacists in mitigating these errors is an area of ongoing investigation.

Purpose of the Study:

• To assess the impact of emergency department (ED) pharmacists on reducing potentially harmful medication errors.
• To quantify the types and frequencies of medication errors identified by ED pharmacists.

Main Methods:

• An observational study was conducted across 4 academic EDs.
• Trained pharmacy residents observed ED pharmacists, documenting medication errors intercepted before, during, or after patient administration.
• Medication errors were confirmed and assessed for potential harm by physician and pharmacist reviewers.

Main Results:

• Pharmacists reviewed 17,320 medications for 6,471 patients, identifying 504 recovered medication errors (7.8 per 100 patients).
• The majority of errors were potential adverse drug events (90.3%) intercepted before patient harm.
• Antimicrobial agents, central nervous system agents, and anticoagulants were the most common drug classes involved in errors.

Conclusions:

• ED pharmacists are effective in identifying and preventing potentially harmful medication errors.
• Further controlled trials are recommended to determine the net costs and benefits of ED pharmacist staffing on patient safety, quality of care, and healthcare economics.