Key Takeaways

  • The 'Five Rights' of medication administration are: Right Patient, Right Drug, Right Dose, Right Route, and Right Time.
  • Most medication errors occur during prescription transcription and dispensing, not administration.
  • High-alert medications require extra verification steps due to their potential for serious harm.
  • Barcode scanning and computerized prescriber order entry (CPOE) significantly reduce medication errors.
  • Near-miss events should be reported and analyzed just like actual errors to prevent future incidents.
Last updated: January 2026

Medication Error Prevention

Quick Answer: Medication errors can occur at any point in the medication use process. Prevention strategies include the Five Rights of medication administration, barcode verification, double-checking calculations, and creating a culture of safety where errors and near-misses are reported without fear of punishment.

Understanding Medication Errors

A medication error is any preventable event that may cause or lead to inappropriate medication use or patient harm. Errors can occur at any stage:

StageExamples
PrescribingWrong drug, dose, or route ordered; drug-drug interaction not caught
TranscribingMisread handwriting; incorrect entry into computer system
DispensingWrong drug or strength selected; incorrect labeling
AdministeringWrong patient; wrong time; missed dose
MonitoringFailure to check labs; missed adverse reactions

The Five Rights of Medication Administration

Every medication dispensing and administration should verify:

RightVerification
Right PatientCheck name, date of birth, patient ID
Right DrugVerify drug name matches prescription
Right DoseConfirm strength and quantity
Right RouteOral, IV, topical, etc.
Right TimeAppropriate dosing schedule

Note: Some organizations have expanded this to the "Seven Rights" (adding Right Documentation and Right Reason) or even "Nine Rights."

Common Causes of Medication Errors

Human Factors

  • Fatigue and distraction - Working long shifts without breaks
  • Knowledge deficits - Unfamiliarity with medications
  • Communication failures - Poor handoff between shifts
  • Calculation errors - Mistakes in dosage calculations

System Factors

  • Look-alike/sound-alike drugs - Medications with similar names
  • Similar packaging - Drug containers that look alike
  • Illegible handwriting - Hard-to-read prescriptions
  • Workflow interruptions - Frequent distractions

Technology-Based Safety Measures

TechnologyFunction
CPOE (Computerized Prescriber Order Entry)Eliminates handwriting errors; provides alerts
Barcode Medication Administration (BCMA)Verifies right drug, dose, and patient at point of care
Automated Dispensing Cabinets (ADC)Controlled access; electronic tracking
Smart PumpsIV pumps with dose-error reduction software
Pharmacy Information SystemsDrug interaction checking; allergy alerts

Root Cause Analysis (RCA)

When a medication error occurs, a Root Cause Analysis helps identify:

  • What happened? - Timeline of events
  • Why did it happen? - Contributing factors
  • How can it be prevented? - System improvements

Key Concept: RCA focuses on system failures, not individual blame. The goal is to fix processes, not punish people.

Reporting Medication Errors

Pharmacy technicians play a crucial role in error reporting:

  • Report all errors AND near-misses - Near-misses provide valuable learning opportunities
  • Use incident reporting systems - Most facilities have electronic reporting tools
  • MedWatch - FDA's program for reporting serious adverse events
  • ISMP MERP - Institute for Safe Medication Practices Medication Errors Reporting Program

Important: A culture of safety encourages reporting without fear of punishment. Underreporting is common when staff fear blame.

Test Your Knowledge

Which of the following is NOT one of the traditional "Five Rights" of medication administration?

A
B
C
D
Test Your Knowledge

A pharmacy technician notices that a medication was almost dispensed with the wrong strength, but catches the error before it reaches the patient. This is called a:

A
B
C
D
Test Your Knowledge

What is the primary goal of conducting a Root Cause Analysis (RCA) after a medication error?

A
B
C
D