Chapter 6: Medication Errors – Prevention & Response

Chapter Six provides an in-depth analysis of medication errors (MEs) and medical errors, detailing the significant impact these incidents have on patients and the healthcare system, including Canadian hospitals where harm related to medication incidents occurs frequently. It is critical to differentiate MEs from related concepts such as adverse drug events (ADEs), which encompass MEs and adverse drug reactions (ADRs), allergic reactions, and idiosyncratic reactions. The chapter emphasizes that preventing MEs requires adopting a systems approach, recognizing that organizational weaknesses—such as excessive workload, interruptions during administration, and poor communication—are often the root causes rather than solely individual nurse shortcomings; this focus supports a "just culture" where accountability and remediation are balanced. Key prevention strategies for nurses include diligently applying the rights of medication administration, checking medication orders three times, minimizing verbal or telephone orders (and repeating them back when necessary), and advocating for the patient when orders are unclear, such as investigating illegible handwriting or questionable dosages. The text specifically addresses the dangers of high-alert medications (like insulin, anticoagulants, and opioids) and the risks associated with look-alike and sound-alike drug names (LASA/SALAD), recommending visual differentiation techniques like TALLman lettering. Technology, including computerized prescriber order entry (CPOE) and medication bar coding, is highlighted as an effective measure to reduce error incidence, despite potential cost barriers. A crucial safety procedure is Medication Reconciliation (MedRec), a formal three-step process—Verification, Clarification, and Reconciliation—performed at all transitions of care (admission, transfer, discharge) to prevent discrepancies between previous and current medication regimens. The chapter also outlines the legal and ethical obligations concerning MEs, mandating immediate assessment of the patient's physiological status, notification of the prescriber and management, and thorough, objective documentation via incident reports. Nurses must be aware of potential professional consequences, including malpractice litigation and disciplinary actions, while simultaneously upholding the ethical duty of transparency and disclosure to patients following a harmful incident.