5 Preventing and Responding to Medication Errors
Learn how to prevent medication errors, respond promptly when they occur, and use reporting and follow-up to reduce future risk.
Medication errors and their outcomes
A may occur during prescribing, transcribing, dispensing, administering, or monitoring a medication. It may cause harm, reach the patient without causing harm, or be intercepted before reaching the patient as a . An is harm associated with medication use; it may or may not result from an error.
Reporting errors and near misses helps identify hazards and prevent recurrence, including when a patient appears unharmed.
Verify before administration
Use the as a practical checklist, not as a guarantee of safety. In addition to the right patient, medication, dose, route, and time, verify the indication, formulation, documentation, and patient response.
Pause and clarify an incomplete, illegible, or unexpected order rather than guessing. Before administration, check allergies, relevant assessments, patient-specific factors, and required laboratory results.
Build safeguards into the workflow
Build safety into each stage of the medication process:
Prepare carefully: Reduce avoidable interruptions, follow standardized procedures, label prepared medications, and separate look-alike or sound-alike products when required.
Verify high-risk steps: Perform required Independent double-checks for specified high-alert medications. The second clinician should verify the relevant information separately, not merely agree with the first check.
Use technology as intended: At the bedside, scan the patient’s identification band and medication, and use the medication administration record and smart-pump drug library. Do not bypass alerts or use workarounds to make the system appear complete. If scanning or pump safeguards fail, stop and follow facility procedure to resolve the problem before proceeding.
Involve the patient: Confirm identity using approved identifiers, explain the medication, and take concerns seriously. A patient who says a medication looks unfamiliar may have noticed a genuine discrepancy.
Reassess and document: Monitor for the intended effect and adverse reactions. Document administration or the reason for withholding or delaying a dose according to policy.
and technology add safeguards, but neither replaces clinical judgment or reliable workflows.
Respond to an error
If an error reaches a patient, protect the patient first; reporting and investigation come next.
Stop or prevent further exposure when safe. For example, stop an incorrect infusion and preserve the medication, tubing, or packaging if needed for review.
Assess the patient promptly. Check airway, breathing, circulation, vital signs, symptoms, and medication-specific risks. Do not wait for symptoms if urgent assessment or escalation is indicated.
Notify the appropriate clinician and charge nurse promptly. Communicate the medication, dose, route, time, and relevant patient findings. Contact pharmacy or other resources as appropriate, and follow instructions for treatment, monitoring, or emergency escalation.
Continue observation and care. Reassess the patient and communicate changes without delay.
Document clinical facts in the health record: what was administered or omitted, when it happened, assessment findings, whom you notified, instructions received, interventions, and the patient’s response. Follow facility policy for a separate safety-event report. Keep documentation factual and avoid speculation or blame.
Report promptly through the organization’s , even if the patient appears unharmed. Include near misses and unsafe conditions as well as events that caused harm. Reporting does not replace immediate clinical escalation.
Communication with the patient and family should follow organizational policy and involve the appropriate clinician or leader. Disclosure is a process: share known facts and care steps promptly, then provide further explanation as the review clarifies what happened.
Report events and learn from them
A useful report describes what happened, when and where it happened, the medication and process involved, the patient’s outcome, and conditions that may have contributed. Relevant conditions can include interruptions, unclear instructions, workload, equipment problems, or confusing packaging. Report objectively: the purpose is to make care safer, not to assign blame. Near misses matter because they can reveal hazards before a patient is harmed.
For example, a nurse notices that an insulin pen selected for one patient is labeled for another. The nurse does not administer it, verifies the correct medication and patient, and follows facility procedure to obtain the right pen. Because the error was intercepted, it is a , but it should still be reported. The report can help identify whether storage, labeling, or workflow contributed.
Organizations should review events for system contributors, choose changes that address identified risks, track whether those changes work, and share lessons with staff. Follow-up may include monitoring the patient, communicating investigation findings through approved channels, and supporting staff involved in the event. A combines accountability with a focus on improving unsafe systems and practices.