Describe the difference between 'medication error' and 'near miss' in pharmacovigilance.

Describe the difference between 'medication error' and 'near miss' in pharmacovigilance.

• A. A medication error is an event that reaches the patient with harm.
• B. A near miss is an error that reaches the patient.
• C. A medication error is an accidental, non-preventable mistake.
• D. A medication error is a preventable mistake; a near miss is an error caught before reaching the patient.

Answer: (D)

The key idea here is how harm and interception define the two terms. A medication error is a preventable mistake in the medication-use process that has the potential to cause inappropriate medication use or patient harm. In pharmacovigilance, that emphasis on preventability means we’re concerned with errors that could affect patient safety, even if an error is caught later. A near miss, on the other hand, is an error that could have caused harm but was intercepted before reaching the patient, so no harm occurs. In practice, this distinction highlights the value of good checks and safeguards: near misses reveal weaknesses in the system that, if fixed, prevent future harm, while medication errors that reach patients illustrate actual safety events that require response and prevention.

The key idea here is how harm and interception define the two terms. A medication error is a preventable mistake in the medication-use process that has the potential to cause inappropriate medication use or patient harm. In pharmacovigilance, that emphasis on preventability means we’re concerned with errors that could affect patient safety, even if an error is caught later. A near miss, on the other hand, is an error that could have caused harm but was intercepted before reaching the patient, so no harm occurs. In practice, this distinction highlights the value of good checks and safeguards: near misses reveal weaknesses in the system that, if fixed, prevent future harm, while medication errors that reach patients illustrate actual safety events that require response and prevention.