Which of the following most effectively reduces medication errors?

Reducing medication errors requires system-based interventions that minimize human error and enforce safety checks.

Option A (Shifting responsibility for medications to the patients): This increases error risk, as patients may lack expertise or consistency.

Option B (Restricting drugs to the hospital formulary): Formulary restrictions standardize medications but do not directly address prescribing or administration errors.

Option C (Using medications before their expiration date): This prevents use of ineffective drugs but does not address common error sources like wrong doses.

Option D (Implementing computerized prescribing orders): This is the correct answer. The NAHQ CPHQ study guide states, “Computerized provider order entry (CPOE) systems reduce medication errors by incorporating decision support, allergy checks, and standardized protocols” (Domain 1). CPOE is a proven safety intervention.

CPHQ Objective Reference: Domain 1: Patient Safety, Objective 1.7, “Use technology to reduce errors,” emphasizes CPOE for medication safety. The NAHQ study guide notes, “CPOE significantly reduces prescribing errors through automated checks” (Domain 1).

Rationale: CPOE’s systemic safeguards make it the most effective for reducing medication errors, as per CPHQ’s safety principles.