# Seminar 4: Patient Safety and Quality Improvement

## Year 4: Transition to Residency

## Learning Objectives

1. Apply fundamental patient safety principles including the Swiss cheese model, human factors, and systems thinking to daily clinical practice
2. Recognize the characteristics of high reliability organizations and just culture that create environments where safety can flourish
3. Identify common safety threats in medication management, diagnostic processes, procedural care, and healthcare-associated infections
4. Respond appropriately to medical errors including stabilizing patients, reporting through proper channels, disclosing to patients, and processing personal emotional impact
5. Participate effectively in quality improvement initiatives using PDSA methodology and appropriate quality measures
6. Engage in institutional safety practices including speaking up, appropriate escalation, and learning from adverse events through structured review processes

## I. Foundations of Patient Safety

The scope of patient safety problems in healthcare is substantial and demands ongoing attention from all clinical team members. Medical errors rank among the leading causes of death, with estimates suggesting that preventable harm affects significant numbers of hospitalized patients annually. Many adverse events that harm patients are preventable through system redesign, process improvement, and attention to known risk factors. The economic cost of medical errors reaches billions of dollars annually in additional care, malpractice costs, and lost productivity. Beyond statistics, each error affects real patients and families, causing suffering that extends far beyond physical harm.

Key concepts in patient safety provide vocabulary for discussing and addressing safety concerns systematically. Adverse events refer to harm caused by medical care rather than the underlying disease, encompassing both preventable and non-preventable injuries. Medical errors represent failures of planned actions to achieve intended outcomes, whether from incorrect plans or correct plans incorrectly executed. Near misses are events that could have caused harm but did not, either through chance or timely intervention, and represent valuable learning opportunities. Never events are serious, clearly preventable adverse events that should not occur if proper safeguards are in place.

The Swiss cheese model provides a conceptual framework for understanding how errors occur in complex systems. Multiple barriers or defenses exist in healthcare systems to prevent errors from reaching patients, like layers of cheese. Each layer has weaknesses or holes that represent potential failure points in the defense. When holes in multiple layers align, errors can pass through all defenses and cause patient harm. Preventing errors requires multiple safeguards so that when one fails, others prevent the error from reaching the patient.

Human factors significantly influence safety by affecting how individuals perform within healthcare systems. Fatigue from long hours and sleep deprivation impairs judgment, slows reaction time, and increases error rates. Cognitive overload from managing too many patients or tasks simultaneously exceeds mental processing capacity. Interruptions during critical tasks like medication administration break concentration and increase error probability. Environmental factors including noise, lighting, equipment design, and workspace layout affect the ability to perform tasks safely.

<image>Figure 1. Foundations of Patient Safety. Panel A presents the scope of patient safety problems including error frequency, preventability estimates, economic costs, and human impact with their implications for clinical practice. Panel B defines key safety concepts including adverse events, medical errors, near misses, and never events with examples of each category. Panel C illustrates the Swiss cheese model showing multiple defense layers with holes representing vulnerabilities and error trajectories when holes align. Panel D depicts human factors affecting safety including fatigue, cognitive overload, interruptions, and environmental conditions with their mechanisms for causing errors.</image>

## II. Culture of Safety

High reliability organizations achieve exceptional safety records through specific characteristics that healthcare systems strive to emulate. Preoccupation with failure involves actively looking for problems rather than assuming that absence of incidents indicates safety. Reluctance to simplify means considering the full complexity of situations rather than accepting oversimplified explanations that miss important factors. Sensitivity to operations maintains awareness of frontline work and the conditions under which care is actually delivered. Commitment to resilience emphasizes learning from errors and bouncing back stronger rather than assigning blame. Deference to expertise means listening to those closest to the work regardless of hierarchical position.

Just culture provides a framework for accountability that supports learning while maintaining appropriate individual responsibility. System accountability recognizes that organizations bear responsibility for creating conditions that make errors likely or unlikely. Individual accountability applies when behavior crosses lines from inadvertent error to at-risk behavior or reckless conduct. Distinguishing behaviors helps determine appropriate responses, with errors addressed through system changes, at-risk behavior through coaching, and reckless behavior through discipline. Learning focus prioritizes understanding what happened and preventing recurrence over punishment that discourages reporting.

Psychological safety creates environments where team members feel safe to speak up about concerns without fear of negative consequences. Willingness to speak up about safety concerns depends on confidence that raising issues will be received appropriately. Asking questions to clarify uncertainties prevents errors that arise from proceeding with incomplete understanding. Admitting mistakes enables learning and prevents cover-ups that delay correction and increase harm. Challenging hierarchy when patient safety is at stake requires overcoming natural reluctance to question those with greater authority.

Team communication tools support the coordination necessary for safe care delivery in complex clinical environments. Briefings before shifts or procedures align team members on plans, roles, and potential concerns. Debriefings after significant events provide structured opportunities to review what happened and identify improvements. Huddles offer quick, focused updates that keep teams informed about evolving situations. SBAR provides a structured format for communicating urgent concerns: Situation, Background, Assessment, and Recommendation.

<image>Figure 2. Creating a Culture of Safety. Panel A presents high reliability organization characteristics including preoccupation with failure, reluctance to simplify, sensitivity to operations, commitment to resilience, and deference to expertise with their applications in healthcare. Panel B illustrates just culture principles of system accountability, individual accountability, behavior distinction, and learning focus with their roles in balanced accountability. Panel C depicts psychological safety elements of speaking up, asking questions, admitting mistakes, and challenging hierarchy with their requirements for effective implementation. Panel D shows team communication tools including briefings, debriefings, huddles, and SBAR with their purposes and optimal use contexts.</image>

## III. Common Safety Threats

Medication safety represents one of the most frequent sources of preventable patient harm in healthcare settings. Wrong drug errors occur when patients receive medications other than what was intended, through prescribing, dispensing, or administration mistakes. Wrong dose errors arise from miscalculation, decimal point placement, or failure to adjust for patient weight or organ function. Wrong patient errors represent among the most dangerous mistakes, prevented through consistent use of two patient identifiers. Drug interaction alerts from electronic systems, while sometimes excessive, identify genuinely dangerous combinations that should be carefully evaluated.

Diagnostic errors cause significant patient harm through delayed, missed, or incorrect diagnoses that result in inappropriate treatment or missed treatment opportunities. Cognitive biases including anchoring, premature closure, and availability heuristic distort clinical reasoning in predictable ways. Incomplete information gathering from rushed histories or incomplete records creates gaps that lead to incorrect conclusions. Handoff failures lose critical information that would have led to correct diagnoses if retained. Test result tracking failures allow abnormal findings to go unaddressed when follow-up systems fail.

Procedural safety relies on standardized practices that prevent wrong-site, wrong-procedure, and wrong-patient events. Universal protocol timeouts before invasive procedures verify correct patient, correct procedure, and correct site while identifying any concerns. Site marking ensures that the operative site is unambiguously identified, particularly for procedures involving laterality. Checklists ensure that all necessary preparation steps are completed and that teams are aligned on plans and concerns. Appropriate supervision ensures that trainees do not exceed their competence levels during procedures.

Healthcare-associated infections cause substantial morbidity and mortality that can be significantly reduced through evidence-based prevention practices. Central line-associated bloodstream infections are reduced through insertion and maintenance bundles emphasizing hand hygiene and sterile technique. Catheter-associated urinary tract infections decrease through attention to catheter indication, insertion technique, and early removal. Surgical site infections respond to antibiotic prophylaxis timing, normothermia maintenance, and glucose control. Ventilator-associated pneumonia prevention includes head-of-bed elevation, oral care, and sedation minimization.

<image>Figure 3. Common Patient Safety Threats. Panel A presents medication safety issues including wrong drug, wrong dose, wrong patient, and drug interaction errors with prevention strategies for each. Panel B illustrates diagnostic error sources including cognitive biases, incomplete information, handoff failures, and test tracking problems with mitigation approaches. Panel C depicts procedural safety elements of timeouts, site marking, checklists, and appropriate supervision with their roles in preventing wrong-site and wrong-procedure events. Panel D shows healthcare-associated infection types and their prevention bundles for central lines, urinary catheters, surgical sites, and ventilators.</image>

## IV. Recognizing and Responding to Errors

Types of medical errors can be categorized in ways that help identify causes and prevention strategies. Errors of commission involve taking wrong actions, such as administering the wrong medication or performing the wrong procedure. Errors of omission involve failing to take correct actions, such as missing a diagnosis or failing to order indicated treatments. Near misses are events that could have caused harm but were caught before reaching the patient, representing opportunities to strengthen defenses. Latent errors are system problems that create conditions for errors without directly causing them, such as confusing medication labeling or inadequate staffing.

When you make an error, a systematic response protects the patient, supports learning, and addresses your own needs. Stop and assess the situation to understand what happened and what immediate risks exist. Stabilize the patient by addressing any immediate harm or ongoing danger from the error. Report to your supervisor so that appropriate oversight and resources can be mobilized. Document the event factually in the medical record to create an accurate account. Disclose to the patient or family as appropriate, and participate in learning activities to prevent recurrence.

Disclosure to patients and families after errors represents both an ethical obligation and an important component of patient-centered care. Honest accounts of what happened respect patient autonomy and maintain trust in the healthcare relationship. Timely disclosure, as soon as appropriate given the patient's condition, prevents the additional harm of delayed information. Empathetic acknowledgment of the impact on the patient validates their experience without defensiveness. Supportive follow-up addresses patient needs arising from the error and maintains the care relationship.

The emotional impact of errors on healthcare providers requires acknowledgment and support. Guilt and self-criticism are normal responses that can become destructive if not processed appropriately. Shame differs from guilt in focusing on the self rather than the action, creating feelings of fundamental inadequacy. Fear about consequences including career impact, legal liability, and peer judgment adds to distress. Seeking support from peers, mentors, or professional resources helps process these emotions constructively.

<image>Figure 4. Responding to Medical Errors. Panel A presents error types including commission, omission, near misses, and latent errors with examples and implications for prevention. Panel B illustrates the systematic response sequence from stopping through assessment, stabilization, reporting, documentation, disclosure, and learning with specific actions at each step. Panel C depicts disclosure principles of honesty, timeliness, empathy, and supportive follow-up with their roles in maintaining patient trust and relationship. Panel D addresses the emotional impact of errors including guilt, shame, and fear with healthy coping and support-seeking strategies.</image>

## V. Reporting Systems

Internal reporting systems capture information about safety events that enables organizational learning and improvement. Incident report systems provide structured methods for documenting adverse events, near misses, and unsafe conditions. Safety hotlines offer immediate access for urgent concerns that require prompt attention. Peer reporting mechanisms allow colleagues to raise concerns about fellow providers when direct communication is insufficient. Anonymous reporting options address situations where reporters have legitimate concerns about retaliation or identification.

Knowing what to report ensures that safety systems capture the information needed for effective learning. Adverse events that cause patient harm should always be reported regardless of severity or apparent preventability. Near misses represent particularly valuable reports because they reveal system vulnerabilities without patient harm. Unsafe conditions in the physical environment, equipment, or processes warrant reporting before they cause events. Safety concerns about practices, staffing, or other factors that create risk should be shared even when specific events have not occurred.

External reporting requirements ensure that serious events receive appropriate oversight and contribute to national learning. FDA reporting is required for adverse events involving medications or medical devices that may indicate product problems. State reporting requirements vary but typically include specific serious events defined by regulation. Joint Commission sentinel event reporting captures events that require root cause analysis and action plans. CDC reporting for infectious diseases supports public health surveillance and outbreak response.

Non-punitive reporting environments are essential for capturing the information needed to improve safety. Encouraging reporting by treating reporters as valued contributors rather than troublemakers increases event capture. Protecting reporters from retaliation ensures that fear does not prevent important safety information from surfacing. Focusing on systems rather than individuals directs attention toward effective interventions rather than blame. Providing feedback about actions taken in response to reports demonstrates that reporting leads to meaningful improvement.

<image>Figure 5. Safety Reporting Systems. Panel A presents internal reporting mechanisms including incident reports, safety hotlines, peer reporting, and anonymous options with appropriate uses for each. Panel B illustrates what should be reported including adverse events, near misses, unsafe conditions, and safety concerns with the value of each type of report. Panel C depicts external reporting requirements to FDA, state agencies, Joint Commission, and CDC with triggering events and purposes. Panel D shows non-punitive reporting principles of encouraging reports, protecting reporters, system focus, and feedback provision with their effects on reporting culture.</image>

## VI. Quality Improvement Basics

Quality improvement differs from research in purpose, method, and application, though both contribute to better patient care. QI aims to improve local care delivery through changes in processes, systems, or behaviors. Research aims to generate generalizable knowledge that can be applied across settings and populations. QI uses iterative cycles that adapt changes based on observed effects in local context. Research uses controlled conditions that isolate variables to test specific hypotheses.

The Plan-Do-Study-Act cycle provides a structured methodology for testing and implementing improvements. Planning involves identifying a problem, developing a theory about its causes, and designing a small-scale test of change. Doing implements the change on a small scale while collecting data on its effects. Studying analyzes results to determine whether the change achieved desired improvements. Acting decides whether to adopt the change, adapt it based on learning, or abandon it in favor of other approaches.

Quality measures provide data for understanding current performance and tracking improvement over time. Structure measures assess the resources and systems in place, such as staffing ratios or equipment availability. Process measures evaluate what is done in care delivery, such as hand hygiene compliance or antibiotic timing. Outcome measures assess results for patients, such as mortality rates, readmission rates, or patient satisfaction. Balancing measures monitor for unintended consequences that might result from changes, ensuring that improvement in one area does not cause harm elsewhere.

Engaging in quality improvement activities contributes to institutional goals while developing skills valuable throughout medical careers. Participating in departmental QI projects provides opportunities to learn methodology while contributing to real improvements. Identifying problems worth solving brings frontline perspective to improvement efforts that leadership may not perceive. Collecting and analyzing data develops skills in measurement and interpretation essential for evidence-based practice. Implementing changes at the local level translates improvement ideas into actual care delivery enhancements.

<image>Figure 6. Quality Improvement Fundamentals. Panel A contrasts QI and research purposes, methods, and applications with examples illustrating their different approaches. Panel B illustrates the PDSA cycle showing the flow from planning through doing, studying, and acting with key activities and decision points at each phase. Panel C presents quality measure types including structure, process, outcome, and balancing measures with examples and their roles in assessing improvement. Panel D shows opportunities for resident engagement in QI through participation, problem identification, data activities, and implementation with skill development benefits.</image>

## VII. Systems Thinking

Root cause analysis provides a structured method for understanding why adverse events occurred and how to prevent recurrence. Identifying the event clearly establishes what happened in specific, factual terms. Gathering information from multiple sources including involved individuals, witnesses, records, and physical evidence creates a complete picture. Mapping the process reveals how work is actually done and where the event deviated from expected flow. Finding root causes asks why repeatedly until fundamental contributing factors are identified. Developing actions creates interventions that address root causes rather than superficial symptoms.

Failure mode and effects analysis takes a proactive approach to identifying and addressing potential problems before they cause harm. This prospective method examines processes to identify how they could fail rather than waiting for failures to occur. Identifying failure modes considers all the ways each step in a process could go wrong. Assessing risk evaluates both the likelihood of each failure and its potential severity. Mitigating high-risk modes implements changes that reduce the probability or impact of the most dangerous potential failures.

Systems thinking shifts focus from individual blame to process improvement that creates sustainable safety gains. Process design shapes the environment in which individuals work, making safe actions easy and errors difficult. Technology including electronic health records, barcoding, and clinical decision support can enhance or undermine safety depending on implementation. Teamwork and communication patterns are system features that can be designed and improved. Environmental factors including physical layout, noise, lighting, and equipment organization affect the likelihood of error.

Implementing lasting change requires attention to factors that determine whether improvements are sustained over time. Leadership support provides resources, removes barriers, and signals organizational priority for safety and quality. Frontline engagement ensures that those closest to the work contribute to designing and implementing changes. Adequate resources including time, training, and equipment enable implementation of intended improvements. Sustainability mechanisms including ongoing monitoring, feedback, and reinforcement prevent regression to previous practices.

<image>Figure 7. Systems Thinking for Safety. Panel A presents root cause analysis methodology from event identification through information gathering, process mapping, cause finding, and action development with the purpose of each step. Panel B illustrates failure mode and effects analysis as a proactive approach covering failure mode identification, risk assessment, and targeted mitigation. Panel C contrasts systems and individual focus areas showing how process design, technology, teamwork, and environment compare with training, competence, behavior, and accountability. Panel D shows implementation success factors including leadership support, frontline engagement, adequate resources, and sustainability mechanisms.</image>

## VIII. Resident Role in Safety

Daily safety practices translate patient safety principles into concrete actions that become habits embedded in routine care. Hand hygiene before and after every patient contact remains the single most important infection prevention measure. Medication verification using two patient identifiers before every administration prevents wrong-patient errors. Timeouts before procedures ensure correct patient, correct procedure, and correct site while identifying any concerns. Structured handoffs using frameworks like I-PASS ensure complete information transfer at care transitions.

Speaking up about safety concerns requires both skills and courage when hierarchy or social pressure might discourage raising issues. Using structured language such as CUS (I'm Concerned, I'm Uncomfortable, This is a Safety issue) provides frameworks for escalating concerns. Asking clarifying questions when uncertain about plans or orders prevents errors from proceeding when simple verification could stop them. Asserting appropriately despite hierarchy gradients challenges the deference that can allow serious errors to proceed unchallenged. Supporting others who speak up reinforces the safety culture and encourages future disclosure of concerns.

Supervision and escalation principles guide decisions about when to act independently and when to seek help. Recognizing the boundaries of your competence requires honest self-assessment of knowledge and skills. Asking for help when situations exceed your capabilities protects patients from harm that could result from undertrained or unsupervised care. Expressing concern respectfully when you disagree with plans ensures that different perspectives are considered in clinical decisions. Clarifying unclear plans prevents errors that arise from misunderstanding or incomplete information.

Self-care and wellness directly affect patient safety by influencing cognitive function, emotional regulation, and clinical judgment. Fatigue impairs judgment, slows reaction time, and increases error rates in well-documented ways. Stress affects decision-making, particularly under time pressure or with complex information. Burnout creates cynicism and detachment that undermine careful attention to safety details. Attending to personal wellness through sleep, nutrition, exercise, and stress management protects patients as well as providers.

<image>Figure 8. The Resident Role in Patient Safety. Panel A illustrates daily safety practices including hand hygiene, medication verification, procedural timeouts, and structured handoffs with their implementation in routine care. Panel B presents speaking up strategies including structured language, clarifying questions, appropriate assertion, and peer support with their applications in challenging situations. Panel C depicts supervision and escalation principles covering competence recognition, help-seeking, concern expression, and plan clarification with guidance for each. Panel D shows the self-care and safety connection linking fatigue, stress, and burnout to patient safety with wellness strategies that protect both providers and patients.</image>

## IX. Learning from Adverse Events

Morbidity and mortality conferences provide structured opportunities for learning from adverse events in educational environments. Case review purposes are educational rather than punitive, focusing on understanding and improvement rather than blame. Non-punitive atmospheres encourage honest discussion by protecting those involved from professional consequences of participation. Systems focus directs attention to contributing factors beyond individual performance that shaped outcomes. Action items translate learning into specific improvements that prevent similar events in the future.

Case review processes follow structures that support thorough analysis while maintaining appropriate respect for complexity. Factual presentation of the timeline establishes what happened without editorializing or premature judgment. Discussion explores what happened and why, considering multiple perspectives and contributing factors. Contributing factor identification looks beyond the immediately involved individuals to system factors that shaped the event. Recommendations for change address modifiable factors with realistic, implementable interventions. Follow-up tracking ensures that recommendations are implemented and effective.

Second victim support addresses the needs of healthcare workers affected by adverse events in which they were involved. Recognizing that providers experience significant emotional impact acknowledges the reality that causing harm is traumatic even when unintentional. Peer support from colleagues who understand the clinical context provides understanding that others may not be able to offer. Professional resources including employee assistance programs and counseling services offer confidential support for more significant distress. Organizational support through appropriate institutional responses demonstrates that providers are valued even after errors occur.

Building resilience enables healthcare workers to recover from adverse events and continue providing high-quality care. Processing emotions through talking about difficult experiences prevents suppression that leads to later problems. Maintaining perspective by recognizing events as learning opportunities rather than defining failures supports recovery. Practicing self-compassion by treating oneself with the kindness one would offer a colleague reduces destructive self-criticism. Using experiences for growth by identifying personal and system improvements transforms painful events into professional development.

<image>Figure 9. Learning from Adverse Events. Panel A presents M&M conference purposes and characteristics including educational focus, non-punitive atmosphere, systems orientation, and action item generation. Panel B illustrates case review process steps from factual presentation through discussion, contributing factor identification, recommendations, and follow-up. Panel C depicts second victim support elements including impact recognition, peer support, professional resources, and organizational response. Panel D shows resilience-building strategies of emotion processing, perspective maintenance, self-compassion, and growth orientation with their roles in recovery from difficult events.</image>

## X. Quality and Safety Resources

Institutional resources provide expertise and support for safety and quality activities within healthcare organizations. Patient safety officers offer specialized knowledge about safety principles, event analysis, and improvement strategies. Quality departments provide methodological expertise in improvement science and data analysis. Risk management addresses legal and insurance aspects of adverse events including disclosure guidance. Compliance departments ensure adherence to regulatory requirements and accreditation standards.

National resources offer broader perspectives, tools, and learning opportunities beyond what individual institutions can provide. The Institute for Healthcare Improvement develops and disseminates improvement methods including the Model for Improvement and PDSA cycles. The Agency for Healthcare Research and Quality produces research, tools, and guidelines for patient safety improvement. The Joint Commission establishes accreditation standards and National Patient Safety Goals that shape institutional priorities. The Leapfrog Group promotes transparency and provides comparative safety information that drives improvement.

Evidence-based practices provide the foundation for safety and quality interventions with established effectiveness. Clinical guidelines synthesize evidence into recommendations for optimal care across clinical conditions. Care bundles package evidence-based interventions that work together to improve outcomes for specific conditions. Checklists ensure that all necessary steps are completed without reliance on memory alone. Standardized protocols reduce variation and ensure consistent delivery of proven effective interventions.

Continuous learning mechanisms embed safety and quality improvement into ongoing professional development. Conferences including M&M, grand rounds, and departmental meetings provide regular opportunities for learning from events and new evidence. Literature review keeps providers current with evolving best practices and new safety research. Simulation provides opportunities to practice responses to rare, high-stakes situations in safe environments. Feedback from events, near misses, and quality data enables targeted improvement in areas of demonstrated need.

<image>Figure 10. Quality and Safety Resources. Panel A presents institutional resources including patient safety officers, quality departments, risk management, and compliance with their roles and expertise areas. Panel B illustrates national resources from IHI, AHRQ, Joint Commission, and Leapfrog with their contributions to safety and quality. Panel C depicts evidence-based practice sources including guidelines, bundles, checklists, and protocols with their applications in standardizing safe care. Panel D shows continuous learning mechanisms of conferences, literature, simulation, and feedback with their roles in ongoing professional development.</image>

## Summary

Patient safety fundamentals establish that medical errors cause substantial preventable harm, with the Swiss cheese model illustrating how multiple defense layers with inherent vulnerabilities allow errors through when weaknesses align. High reliability organizations and just culture create environments where safety thrives through preoccupation with failure, balanced accountability, and psychological safety that encourages speaking up without fear. Common safety threats in medication management, diagnostic processes, procedural care, and healthcare-associated infections have well-established prevention strategies that residents should implement consistently.

Responding to errors requires systematic approaches that prioritize patient stabilization, followed by appropriate reporting, honest disclosure, and personal processing of the emotional impact that errors inevitably create. Reporting systems depend on non-punitive cultures that encourage capture of adverse events, near misses, and unsafe conditions to enable organizational learning. Quality improvement using PDSA cycles and appropriate measures provides methodology for systematic enhancement of care processes and outcomes.

Systems thinking through root cause analysis and failure mode analysis directs attention to process design, technology, and environmental factors that shape individual performance rather than focusing solely on blame. Residents contribute to safety through daily practices, speaking up about concerns, appropriate escalation and supervision-seeking, and attending to personal wellness that affects clinical performance. Learning from adverse events through M&M conferences, case review processes, and second victim support transforms painful experiences into opportunities for improvement. Institutional and national resources provide expertise, tools, and evidence-based practices that support ongoing safety and quality work throughout medical careers.

## Key Terms

- **Adverse event**: Unintended harm to a patient caused by medical care rather than the underlying disease process
- **Near miss**: An event that could have caused patient harm but did not, either through chance or timely intervention before harm occurred
- **Just culture**: An accountability framework that balances system responsibility for creating safe conditions with individual responsibility for behavioral choices
- **PDSA (Plan-Do-Study-Act)**: A structured improvement cycle for testing changes through small-scale implementation, measurement, and iterative refinement
- **Root cause analysis**: A structured method for investigating adverse events to identify fundamental contributing factors and develop effective prevention strategies
- **Second victim**: A healthcare worker who experiences emotional distress after involvement in an adverse event or medical error
- **SBAR (Situation-Background-Assessment-Recommendation)**: A structured communication tool for conveying urgent clinical information in standardized format
- **High reliability organization**: An organization that operates in hazardous conditions while achieving consistently safe outcomes through specific cultural and operational characteristics

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