Patient Safety, Quality Improvement & Root Cause Analysis

Swiss Cheese Model

System-level defense layers with holes; accidents occur when holes align

Active vs Latent Error

Active = Sharp end (frontline clinician); Latent = Blunt end (system design, staffing, policy)

Root Cause Analysis (RCA)

Retrospective, non-punitive system investigation following sentinel events

Medical Error Disclosure

Disclose immediately, truthfully, apologize, and explain corrective plan

Error Classifications & Safety Science Definitions

Understanding the taxonomy of medical errors and safety events:

Event Classification	Operational Definition	Clinical Example	Mandatory Response
Near Miss (Close Call)	An error caught BEFORE reaching the patient; no harm done	Nurse discovers wrong drug in medication drawer before administration	Voluntary anonymous reporting to hospital safety reporting system
No-Harm Event	Error reaches patient, but results in no detectable injury	Patient given penicillin despite allergy, but experiences no allergic reaction	Document in chart, monitor patient, report internally
Adverse Event	An injury resulting from medical care rather than the underlying disease	Postoperative wound hematoma from inadequate hemostasis	Patient clinical care, investigation, documentation
Sentinel Event	An unexpected event involving death or serious permanent physical/psychological injury (or risk thereof)	Wrong-site surgery, retained foreign surgical sponge, patient suicide in hospital	Immediate Root Cause Analysis (RCA) and reporting to Joint Commission

Communication & Medical Error Disclosure Protocol

When an error causes patient harm, immediate open communication is ethically required:

Core Disclosure Steps

1. Disclose immediately: Provide clear, factual information about what happened as soon as the patient is medically stabilized.
2. Express regret and empathy: An apology (e.g., "I am so sorry this happened") is compassionate and does NOT constitute an admission of legal liability.
3. Explain corrective action: Detail what is being done to treat the complication and what system changes are being made to prevent recurrence.
4. Offer ongoing support: Reassure the patient that care will continue uninterrupted.

What NOT to Do

NEVER blame other healthcare team members (e.g., "the pharmacy messed up"), never falsify or alter the medical record, and never delay disclosure until legal counsel reviews the case.

QI Methodologies: PDSA & Failure Mode Effects Analysis

Continuous quality improvement relies on structured engineering cycles:

Plan-Do-Study-Act (PDSA) Cycle

Plan: Identify problem, form hypothesis, plan test.
Do: Implement small-scale pilot test.
Study: Analyze data before and after test.
Act: Refine, standardize, or discard based on data.

Failure Mode and Effects Analysis (FMEA)

PROSPECTIVE analysis that identifies potential points of failure in a process before they occur (unlike RCA, which is retrospective after an error).

COMLEX / OMM Integration NBOME High-Yield Correlate

Safe Positioning in OMT and Quality Assurance

- Pre-Procedure Checklist: Confirming patient identity, somatic dysfunction localization, and absence of red-flag contraindications (such as screening for cervical instability or anticoagulant therapy) mirrors surgical time-outs.
- Non-punitive Culture: Documenting and reporting minor adverse reactions (post-treatment flare) ensures accurate patient safety auditing in manual medicine.

Board Traps & Common Distractors

Trap: Falsifying medical records after discovering an adverse event. Modifying a chart after an error is illegal, destroys legal credibility, and constitutes spoliation of evidence.
Trap: Confusing Root Cause Analysis (RCA) with Failure Mode and Effects Analysis (FMEA). RCA is retrospective (done after the sentinel event has already happened); FMEA is prospective (done proactively to prevent errors in high-risk processes).