Patient Safety & Systems-Based Practice
Hospital-acquired conditions: never events overview
— CMS adopted a subset as Hospital-Acquired Conditions (HACs) for which it does not reimburse the incremental cost of care if the condition was not present on admission (POA)
— "Serious Reportable Events" (SREs) is the NQF's formal term; "never event" is the colloquial CMS-era label
— Surgical/invasive: wrong-site/wrong-patient/wrong-procedure surgery, retained foreign object, intraoperative death in ASA I patient
— Product/device: contaminated drug or device, air embolism, device malfunction
— Patient protection: infant discharge to wrong person, patient elopement with harm, inpatient suicide
— Care management: medication error with death, hemolytic transfusion reaction (ABO incompatibility), maternal death in low-risk delivery, hypoglycemia death, kernicterus, stage 3–4 or unstageable pressure ulcer acquired in hospital, artificial insemination with wrong donor
— Environmental: electric shock, burn, fall with serious injury, wrong gas line
— Radiologic: introduction of metallic object into MRI area
— Criminal: impersonating provider, abduction, sexual assault on premises
Board pearl: Step 3 wants you to recognize that the correct response is not blame — it is incident reporting, root cause analysis (RCA), and disclosure to the patient. Punitive answer choices are distractors. Never events trigger systems analysis, not individual discipline as the first move.

— "A surgical sponge is identified on postoperative chest radiograph" → retained foreign object
— "An 80-year-old admitted for pneumonia develops a 6×6 cm sacral wound with exposed bone on hospital day 9" → stage 4 HAPU (hospital-acquired pressure ulcer)
— "A patient with a urinary catheter placed for strict I/Os develops fever and bacteriuria on day 5" → CAUTI, an HAC if catheter was non-indicated
— "Type A blood transfused into a type O recipient; the patient develops fever, flank pain, hemoglobinuria within minutes" → ABO-incompatible transfusion
— "Surgeon begins left knee arthroscopy; pre-op consent specified right knee" → wrong-site surgery
— "Postoperative day 2 patient is found unresponsive with insulin pump infusing at 10× ordered rate" → medication error
— Present on admission (POA)? This is the pivot. If the pressure ulcer, DVT, or infection was documented within the first 24–48 hours, it is not a HAC and CMS still pays
— Indication for the device (catheter, central line, restraint) — lack of valid indication converts a complication into a preventable HAC
— Time-out documentation for procedural events
— Two-identifier verification for blood products, medications, neonates
Step 3 management: When the stem asks "what is the next best step?" after a never event is recognized, the answer is almost always: (1) stabilize the patient, (2) disclose the error honestly to the patient/family, (3) file an incident/safety report, and (4) notify risk management — in that order. Do not pick "consult the hospital attorney before telling the patient" or "wait until the family asks."

— Stage 1: non-blanchable erythema, intact skin
— Stage 2: partial-thickness loss, shallow open ulcer or intact/ruptured blister
— Stage 3: full-thickness, subcutaneous fat visible, no exposed bone/tendon
— Stage 4: full-thickness with exposed bone, tendon, or muscle — reportable HAC
— Unstageable: base obscured by slough/eschar — also a reportable HAC
— Deep tissue injury: purple/maroon intact skin or blood-filled blister
Key distinction: A stage 2 pressure ulcer present at admission is not a HAC; a stage 3 or 4 that develops in-hospital is. POA documentation in the first 24 hours is the financial and quality pivot point.

— Plain radiograph of operative field (sponges contain radiopaque markers — required since 2006 standards)
— CT for deep cavities or non-radiopaque items
— Intraoperative sponge/instrument/needle count discrepancy triggers immediate radiograph before leaving OR
— Diagnosis is procedural, not laboratory; verification tools are the Universal Protocol: pre-procedure verification, site marking by the operating surgeon with indelible marker, and time-out immediately before incision
— Documentation review: consent matches site, imaging matches laterality, patient verbalized site preop
— CAUTI: symptoms + urine culture ≥10³ CFU/mL in catheterized patient (or recently removed)
— CLABSI: positive blood culture in patient with central line ≥2 calendar days, not attributable to another site; differential time-to-positivity ≥2 hours (line earlier) supports line source
— SSI (surgical site infection): within 30 days of procedure (90 days if implant); superficial, deep, or organ/space
— Stop transfusion immediately, maintain IV access with NS
— Send remaining product + post-transfusion blood and urine to blood bank
— Labs: repeat type and crossmatch, direct Coombs, plasma free hemoglobin, haptoglobin, LDH, bilirubin, urinalysis for hemoglobinuria, DIC panel (PT/PTT, fibrinogen, platelets, D-dimer)
— Head CT if anticoagulated, on antiplatelet, or altered; hip/wrist films per exam; medication reconciliation
CCS pearl: On CCS, after a never event order "incident report," "risk management consult," and "disclose to patient/family." Forgetting disclosure costs points. Order the safety actions in parallel with clinical stabilization.

— Multidisciplinary team: clinicians involved, nursing, pharmacy, risk management, quality
— Uses tools: fishbone (Ishikawa) diagram, 5 Whys, fault tree analysis, process mapping
— Goal: identify latent system failures, not individual culpability — the "Swiss cheese model" (James Reason): multiple holes in defenses align to allow harm
— Output: action plan with measurable interventions and reassessment timeline
— Operative notes, time-out checklist, consent form
— Medication administration record (MAR), barcode scan logs
— Nursing turning/repositioning documentation (q2h standard for pressure ulcer prevention)
— Catheter insertion checklist, daily necessity review
— Sponge/instrument count records
— Internal: hospital incident reporting system (e.g., RL Solutions, Midas)
— External mandatory: state health department for sentinel events in many states; CMS via claims with POA indicator
— Voluntary: Patient Safety Organizations (PSOs) under the Patient Safety and Quality Improvement Act of 2005, which confers legal privilege to PSO-submitted data — encourages reporting without litigation discoverability
Board pearl: RCA findings are protected under PSO privilege when submitted appropriately — this protection is precisely what enables honest reporting and is a favored exam concept.

— Emergency surgery, trauma, after-hours cases (higher wrong-site risk)
— Multiple procedures on the same patient or bilateral structures
— Patient transfers between units (handoff failures)
— Long ICU stays (CLABSI, CAUTI, HAPU, VAP risk)
— Polypharmacy elderly (medication errors, falls)
— Cognitive impairment, language barriers, sensory deficits
— CLABSI bundle: hand hygiene, maximal barrier precautions, chlorhexidine skin prep, avoid femoral site in adults, daily review of line necessity
— CAUTI bundle: insert only for valid indication (urinary retention, critically ill with strict I/O, perioperative for select surgeries, comfort in end-of-life, sacral wound healing), aseptic insertion, closed drainage, daily necessity review, remove ASAP
— VAP bundle: head of bed 30–45°, daily sedation interruption + spontaneous breathing trial, DVT prophylaxis, stress ulcer prophylaxis, oral chlorhexidine care
— SSI bundle: appropriate antibiotic timing (within 60 min before incision; 120 min for vanco/fluoroquinolones), normothermia, glycemic control, appropriate hair removal (clippers, not razors), chlorhexidine-alcohol skin prep
— HAPU prevention: Braden score on admission and daily, q2h repositioning, pressure-redistributing surfaces, nutrition optimization, moisture management
— Fall prevention: Morse/Hendrich scoring, bed/chair alarms, non-skid footwear, scheduled toileting, medication review
— Step 1: Pre-procedure verification of patient, procedure, site, consent, imaging
— Step 2: Site marking by operating provider with patient awake/aware
— Step 3: Time-out immediately before incision — entire team pauses, agrees
Step 3 management: When asked the most effective prevention strategy, choose system-level interventions (checklists, bundles, forcing functions, barcode scanning) over education alone or individual reminders — education has the lowest durability in the hierarchy of effectiveness.

— Stop transfusion immediately; keep IV open with normal saline
— Aggressive IV crystalloid to maintain UOP >0.5–1 mL/kg/hr (prevent pigment nephropathy)
— Loop diuretics (furosemide) only after volume repletion if oliguric
— Treat hyperkalemia (DIC + hemolysis) and DIC supportively (FFP, cryoprecipitate, platelets PRN)
— Vasopressors if shock; ICU transfer
— Reverse where antidote exists: naloxone (opioids), flumazenil (benzos — caution in chronic use, seizure risk), glucagon/calcium/insulin-dextrose/lipid emulsion (beta-blocker/CCB overdose), vitamin K + 4-factor PCC (warfarin), idarucizumab (dabigatran), andexanet alfa (apixaban/rivaboxaban), N-acetylcysteine (acetaminophen), fomepizole (ethylene glycol/methanol), hydroxocobalamin (cyanide)
— Insulin overdose: D50 IV bolus + D10 infusion, frequent glucose checks; consider octreotide for sulfonylurea-induced hypoglycemia
— Empiric broad-spectrum coverage tailored to local antibiogram (often vancomycin + antipseudomonal beta-lactam for CLABSI)
— Remove the offending line/catheter when feasible — source control trumps antibiotics alone
— De-escalate based on cultures; treatment duration 7–14 days for uncomplicated CLABSI, longer for S. aureus (≥14 days) or fungemia (≥14 days from first negative culture)
CCS pearl: After any never event, order "counsel patient/family" and "incident report" explicitly in CCS — these earn safety/communication points beyond pure clinical management.

— Forcing functions / constraints (most effective): tubing with non-Luer connectors prevents enteral-to-IV misconnection; pyxis lockouts; concentrated electrolytes removed from floor stock
— Automation/computerization: CPOE with clinical decision support, barcode medication administration (BCMA), smart pumps with dose error reduction
— Standardization/protocols: order sets, checklists (WHO Surgical Safety Checklist reduces mortality ~40%), bundles
— Reminders/checklists: central line checklist, time-out
— Education/training: least durable alone but necessary adjunct
— Rules/policies: weakest if not paired with system support
— Site marking: unambiguous mark (initials or "YES") at incision site, visible after prep/drape, done by performing surgeon with patient participation when possible. Do NOT mark non-operative site with "NO"
— Time-out: patient identity (2 identifiers), procedure, site/side, position, consent, allergies, antibiotic prophylaxis given, imaging available, equipment ready, fire risk assessment
— Surgical counts: sponges, sharps, instruments counted before, during, after; discrepancy → exploration + radiograph before closure
— Context, Opening, Narrative, Emotions, Strategy
— Acknowledge the event, express regret, share known facts, commit to investigation and follow-up, do not speculate on cause or assign blame prematurely
Board pearl: Many states have apology laws (~38 states) that make expressions of sympathy inadmissible in malpractice litigation — encouraging honest disclosure. Step 3 expects you to disclose regardless.

— Falls: leading inpatient adverse event in elderly; risk factors include polypharmacy (>4 meds), benzodiazepines, anticholinergics, antipsychotics, orthostasis, delirium, vision/hearing impairment, urinary urgency
— HAPU: thin skin, reduced subcutaneous fat, malnutrition, immobility, incontinence — Braden ≤18 high risk
— Delirium: itself a quality marker; precipitates falls, restraint use, prolonged stay. Treat with non-pharmacologic measures first (reorientation, sleep hygiene, mobility, hearing aids, glasses, family presence)
— CAUTI: elderly more likely to have catheters placed for "convenience" — an inappropriate indication. Asymptomatic bacteriuria in elderly should not be treated (except pregnancy or pre-urologic procedure)
— Medication errors: Beers Criteria identifies potentially inappropriate medications; STOPP/START criteria parallel framework. Renal dosing errors common as eGFR declines with age (creatinine may underestimate impairment)
— Reduce or avoid: enoxaparin (use UFH if CrCl <30), gabapentin, gabapentinoids, NSAIDs, metformin (avoid eGFR <30), contrast agents
— Vancomycin, aminoglycosides require level monitoring
— DOACs: dabigatran avoid CrCl <30; apixaban dose adjust based on age/weight/Cr
— Avoid/reduce: acetaminophen >2 g/day in cirrhosis, NSAIDs (GI bleed, HRS), benzodiazepines except lorazepam/oxazepam/temazepam (no hepatic metabolism), opioids (use cautiously), statins (monitor)
— Anticoagulation: warfarin and DOACs require caution in Child-Pugh B/C
— Requires order, ongoing assessment, time-limited (4 hrs adults, 2 hrs adolescents, 1 hr <9 yrs), face-to-face evaluation within 1 hr
Key distinction: Treating asymptomatic bacteriuria in a catheterized elder is itself a quality failure (antibiotic stewardship violation, C. difficile risk) — not the correct management, even if culture is positive.

— Maternal death in low-risk pregnancy or labor is an NQF SRE
— Wrong neonate to wrong mother (infant abduction or mis-identification at discharge) — requires two-identifier banding at birth, security systems (Hugs/Halo tags)
— Kernicterus: preventable through universal bilirubin screening before discharge, transcutaneous + serum bilirubin nomograms (Bhutani), phototherapy thresholds. A neonate discharged with TSB above phototherapy threshold who develops kernicterus = reportable event
— Artificial insemination with wrong donor sperm/egg — labeling/chain-of-custody failure
— Weight-based dosing errors are leading source of pediatric medication harm — always order in mg/kg with maximum adult dose cap; require independent double-check for high-alert meds (insulin, opioids, chemo, anticoagulants)
— Tenfold dosing errors common with decimals — use leading zero (0.5 mg) and avoid trailing zero (5 mg not 5.0 mg)
— Newborn falls from maternal bed during co-sleeping/breastfeeding — emerging never event category
— Retained foreign objects higher in small body cavities; counts equally critical
— Inpatient suicide using non-ligature-resistant fixtures is an NQF SRE
— Environmental safety: ligature-resistant doors, breakaway shower rods, tamper-resistant outlets, no anchor points >18 inches
— Q15-minute or 1:1 observation per risk assessment
— Sharps, shoelaces, belts, plastic bags removed
— Category X/contraindicated: warfarin (1st tri), ACEi/ARBs, isotretinoin, methotrexate, valproate, statins
— Verify pregnancy status before teratogen administration — REMS programs (iPLEDGE for isotretinoin)
Step 3 management: A newborn discharged before 24 hours without bilirubin screening who returns with kernicterus → focus answer on system failure in universal screening, not on parental delay.

— Wrong-site surgery: unnecessary procedure on healthy limb/organ + persistent disease in correct site; permanent disability, amputation, loss of organ function
— Retained foreign object: abscess, fistula, bowel obstruction, sepsis, chronic pain, reoperation
— ABO-incompatible transfusion: acute hemolysis, AKI, DIC, shock, death (mortality ~5–10%)
— CLABSI: sepsis, endocarditis (especially S. aureus), metastatic infection, mortality up to 25%
— CAUTI: bacteremia, sepsis, pyelonephritis; longer LOS
— Stage 4 HAPU: osteomyelitis, sepsis, surgical flap closure, chronic non-healing wound, Marjolin ulcer (squamous cell carcinoma in chronic wound)
— Inpatient fall with injury: hip fracture (30-day mortality ~10%), traumatic ICH (especially anticoagulated), cervical spine injury
— Inpatient suicide: completed death; profound staff and family trauma
— Air embolism: stroke, MI, death
— CMS non-payment: hospital absorbs cost of treating the HAC
— HAC Reduction Program: worst-performing quartile of hospitals loses 1% of all Medicare payments
— Hospital Value-Based Purchasing and Readmissions Reduction Program further tie reimbursement to quality
— Public reporting: Hospital Compare, Leapfrog Hospital Safety Grade, state databases — affect market share
— Litigation: never events near-strict liability in some jurisdictions ("res ipsa loquitur" for retained foreign body)
— Second-victim phenomenon: clinicians involved suffer psychological harm; institutions should provide peer support (e.g., RISE program at Hopkins)
Board pearl: Retained surgical sponge is the classic res ipsa loquitur malpractice case — negligence is inferred from the event itself; expert testimony on standard of care is not required for plaintiff to prevail.

— Rapid Response Team / MET for any patient deterioration meeting criteria (early warning scores: MEWS, NEWS2)
— Code team for arrest
— ICU transfer for hemodynamic instability post–transfusion reaction, septic CLABSI, severe medication error, post-fall ICH
— Charge nurse + unit manager immediately
— Attending physician notified (do not let trainees navigate alone)
— Risk management within hours — coordinates disclosure, documentation, investigation
— Hospital incident reporting system entry — within 24 hours
— Patient Safety Officer / Quality department for RCA initiation
— Sentinel event reporting to Joint Commission — voluntary but expected; triggers RCA within 45 days
— State health department — mandatory in many states (NY, CA, MA, MN, others)
— CMS via POA indicator on claims
— FDA MedWatch for device or drug-related events
— Coroner/medical examiner for unexpected death
— Attending leads disclosure conversation with patient/family — not the trainee
— Multidisciplinary if appropriate (surgeon + intensivist + nursing)
— Document conversation: who present, what said, questions asked, follow-up plan
— Offer second opinion, additional consultations, fee waivers for care related to the harm
CCS pearl: On CCS scenarios involving a sentinel event, orders to place: "counsel patient and family," "incident report," "risk management consult," "social work consult" (for family support), and continued clinical management. Missing the safety/communication orders forfeits points even when clinical management is flawless.

— Never event: wrong-site surgery, wrong-patient surgery, retained foreign object, unintended retention post-procedure
— Not a never event (recognized complication if standard of care met): postoperative bleeding, anastomotic leak in high-risk patient, anesthetic reaction, expected wound infection rate
— Key: never events reflect process failure, not biological variability
— Documentation in first 24 hours determines POA status
— Stage 2 HAPU is not on the CMS HAC non-payment list, but stage 3, 4, and unstageable are
— Mucosal pressure ulcers (e.g., from NG tube, ET tube) are not staged using the skin staging system
— CLABSI: primary bloodstream infection in patient with central line ≥2 days, no other source
— Contaminant: single positive culture with common skin flora (coag-neg staph, Cutibacterium), no clinical correlation — usually not reported as CLABSI
— Secondary bacteremia: seeded from another identifiable source (pneumonia, UTI, abscess) — not classified as CLABSI
— CAUTI requires symptoms + culture criteria
— Asymptomatic bacteriuria in catheterized patient is common, generally not treated except in pregnancy or before urologic procedure with mucosal trauma
— Treating asymptomatic bacteriuria → C. difficile, resistance, not a quality improvement
— AHTR (ABO): fever, hypotension, flank pain, hemoglobinuria, DIC — minutes
— Febrile non-hemolytic: fever +/- chills, no hemolysis — treat with antipyretics, use leukoreduced products
— TRALI: hypoxia + bilateral infiltrates within 6 hours — donor anti-leukocyte antibodies
— TACO: volume overload, HTN, BNP elevation — treat with diuresis
Key distinction: A febrile reaction during transfusion always requires stopping the transfusion until AHTR is excluded — never assume "just FNHTR" without workup.

— ADE: any injury from a medication (broadest term)
— Medication error: preventable inappropriate medication use (may or may not cause harm) — includes wrong drug, wrong dose, wrong route, wrong patient, wrong time, omission
— ADR: unintended noxious response at therapeutic dose (not preventable in most cases — Type A predictable, Type B idiosyncratic)
— Near miss: error caught before reaching patient — should still be reported
— Sentinel event (Joint Commission): unexpected occurrence involving death, severe harm, or risk thereof — triggers RCA
— Never event (colloquial): preventable serious event, generally aligned with NQF SRE list
— SRE (NQF): the formal 29-event list
— HAC (CMS): the reimbursement-related list — overlaps but not identical to SRE list; includes CAUTI, CLABSI, SSI for select procedures, falls/trauma, HAPU stage 3/4, DVT/PE after select orthopedic procedures, glycemic events, iatrogenic pneumothorax, foreign object after surgery, ABO transfusion incompatibility
Board pearl: "Near misses" should be reported with the same rigor as actual events — they reveal system vulnerabilities before harm occurs and are the highest-yield source for prevention learning.

— Comprehensive discharge plan addressing the harm: wound care follow-up for HAPU, antimicrobial completion for CLABSI/CAUTI, PT/OT for fall-related injury, mental health support for inpatient suicide attempt survivors
— Medication reconciliation at every transition — admission, transfer, discharge — using 3-source verification
— Fee waiver for care related to the preventable harm — many institutions adopt this proactively
— Follow-up appointment scheduled before discharge with specific clinician aware of the event
— Patient/family education with teach-back: red flags, when to return, who to call
— Written summary in patient-accessible language
— Action items with owner, timeline, metric, reassessment date (SMART goals)
— Common interventions:
— Hard stops in CPOE (e.g., cannot order vincristine in IV bag — only syringe)
— Smart pump library updates with dose limits
— Mandatory time-out checklist with stop-the-line authority
— Daily line/catheter necessity huddles
— Two-RN verification expansion
— Sponge-counting technology (radio-frequency tags)
— Bedside shift report including safety risks
— Reassessment at 30/60/90 days to verify sustainment
— Share learning across the system — internal grand rounds, safety bulletins
— Structured handoff tools: I-PASS (Illness severity, Patient summary, Action list, Situation awareness, Synthesis by receiver), SBAR (Situation, Background, Assessment, Recommendation)
— Reduces medical errors by ~30% in studies
Step 3 management: After a never event involving discharge, the longitudinal answer includes (1) timely follow-up within 7 days for high-risk discharges, (2) medication reconciliation, (3) clear communication to outpatient PCP via discharge summary within 48 hours, and (4) follow-through on RCA action items.

— Within 24–48 hours post-discharge: phone call from care team, symptom check, medication review
— 7–14 days: PCP or specialist follow-up appropriate to the harm
— 30/60/90 days: functional assessment, ongoing rehab needs
— Long-term: PTSD screening (PCL-5), depression screening (PHQ-9), especially after iatrogenic harm
— HAC rates tracked monthly per unit: CLABSI per 1000 line-days, CAUTI per 1000 catheter-days, HAPU prevalence, fall rate per 1000 patient-days, SSI per 100 procedures
— NHSN (National Healthcare Safety Network) reporting — CDC's surveillance system, mandatory for CMS-participating hospitals
— Standardized Infection Ratio (SIR): observed/predicted, risk-adjusted
— Culture of safety surveys (AHRQ Hospital Survey on Patient Safety Culture) — annual or biennial
— Run charts and statistical process control (SPC) charts identify special-cause variation
— Plan: define change, hypothesis, measures
— Do: small-scale test
— Study: analyze data
— Act: adopt, adapt, or abandon
— Iterative; pairs well with Lean/Six Sigma
— Annual competencies for high-risk procedures (central line insertion, blood administration)
— Simulation training for low-frequency/high-stakes events (massive transfusion, malignant hyperthermia, code blue)
— Just-in-time training when new equipment or protocols introduced
CCS pearl: For longitudinal CCS cases, include follow-up phone call, PCP follow-up appointment within 7 days, and medication reconciliation orders — these are the bread-and-butter Step 3 outpatient transitions-of-care moves.

— AMA Code of Medical Ethics 8.121: physicians have an ethical duty to disclose harmful errors to patients
— Joint Commission standard: patients must be informed of unanticipated outcomes
— Just Culture: balances individual accountability with system responsibility; non-punitive for honest errors, accountable for reckless behavior
— Apology laws in ~38 states protect expressions of sympathy from being used as admission of liability; some protect fuller disclosure ("benevolent gestures")
— Wrong-site surgery as consent violation: the consent specifies the site; operating on the wrong site is a battery, not merely negligence in some jurisdictions
— Surgical fires, retained objects: generally not disclosed as risks in routine consent because they should never occur — disclosure is required after if they happen
— Patient with capacity refusing fall prevention: document discussion, offer alternatives (low bed, alarm), do not use restraints absent emergency
— State sentinel event reporting (varies by state)
— FDA MedWatch for device/drug-related serious events
— Coroner/ME for unexpected death
— Law enforcement for criminal events (assault, abduction, suspected abuse — child, elder, dependent adult)
— Public health for reportable conditions
— Discharge during shift change, weekends, holidays — higher error rate
— Discharge before pending labs return without follow-up plan = legal/ethical liability
— Use structured discharge tool ensuring: meds reconciled, follow-up scheduled, results pending list communicated to PCP, patient understands red flags (teach-back)
— Hospitalist-to-PCP handoff: discharge summary within 48 hours per Joint Commission
Board pearl: A trainee who recognizes an error must report it even if a senior tells them not to. Step 3 answer: report through proper channels (chain of command, then ombudsman/compliance hotline if blocked) — patient safety supersedes hierarchy.

— 45 days: RCA timeframe after sentinel event per Joint Commission
— 2 calendar days: central line dwell threshold for CLABSI attribution
— 30 days / 90 days: SSI surveillance window (90 with implant)
— 60 minutes: antibiotic prophylaxis before incision (120 for vanco/FQ)
— 1% Medicare payment: penalty for bottom-quartile hospitals in HAC Reduction Program
— q2h: standard repositioning frequency for pressure ulcer prevention
— 30–45°: head-of-bed elevation for VAP prevention
— Retained sponge → res ipsa loquitur, plain film with radiopaque marker
— Wrong-site surgery → Universal Protocol failure (time-out skipped or rushed)
— ABO transfusion reaction → clerical/identification error at bedside (most common cause)
— CLABSI → femoral line, prolonged dwell, multilumen
— CAUTI → no valid indication, prolonged catheterization
— Stage 4 HAPU → immobility + malnutrition + moisture (incontinence)
— Inpatient fall → benzo + zolpidem + nocturia + dim lighting
— Kernicterus → early discharge without bilirubin screening
— Air embolism → upright position during central line removal → left lateral decubitus + Trendelenburg
— Swiss cheese model (Reason) — latent failures align
— Just Culture — error vs. at-risk vs. reckless
— Hierarchy of effectiveness — forcing functions > education
— PDSA cycle — Plan-Do-Study-Act
— Universal Protocol — verify, mark, time-out
— 5 Rights of medication — patient, drug, dose, route, time (now 6+: documentation, response)
— SBAR, I-PASS (handoffs)
— CUS ("I'm Concerned, I'm Uncomfortable, this is a Safety issue") — escalation language
— TeamSTEPPS — AHRQ teamwork training
Key distinction: Sentinel event is process-defined (triggers RCA); never event is outcome-defined (NQF list); HAC is reimbursement-defined (CMS). Overlap, but distinct definitions matter on exam.

"Surgeon begins arthroscopy on left knee; consent specified right. After 15 minutes, error recognized. Next best step?"
— Answer: stop procedure, stabilize patient, disclose to patient/family, file incident report, RCA. Distractors: continue (wrong), consult attorney first (wrong), discipline scrub nurse (wrong — system issue)
"Postop day 7, patient with persistent fever and abdominal pain after appendectomy. CT shows radiopaque foreign body. Next step?"
— Answer: surgical removal, disclose to patient, incident report. The Q may also test root cause (count discrepancy ignored in OR)
"Patient admitted for CHF; on day 12, stage 3 sacral ulcer noted. Admission skin exam documented intact skin. CMS reimbursement implication?"
— Answer: HAC, not reimbursed at higher DRG; institution absorbs cost
"Patient develops fever, flank pain, hypotension 5 minutes into transfusion. Best immediate action?"
— Answer: stop transfusion, maintain IV with saline, send products and blood/urine to blood bank, support BP, monitor renal function
"Trainee gave 10x insulin dose. Patient recovered after D50. Attending says don't tell patient. Best action?"
— Answer: disclose to patient honestly — ethical duty supersedes attending's preference. Report through proper channels
"After medication error, hospital fires the nurse. Best next institutional action?"
— Answer: focus on system fix via RCA, not solely individual punishment — unless reckless
"Most effective intervention to prevent recurrent wrong-site surgery?"
— Answer: forcing function/standardized time-out (not staff education alone)
"Pharmacist catches wrong dose before administration. Action?"
— Answer: report the near miss — same rigor as actual event
Board pearl: When in doubt, choose the answer that includes disclosure, incident report, and system improvement — the Step 3 troika for any safety event.

Never events are preventable, serious patient harms whose correct response on Step 3 is always: stabilize, disclose honestly, report through patient-safety channels, and pursue root cause analysis aimed at system redesign rather than individual blame.
— Disclose, don't conceal: ethical duty (AMA), Joint Commission standard, often legally protected by state apology laws — always pick the disclosure answer
— System over individual: RCA, Just Culture, Swiss cheese model — forcing functions and standardization beat education and reminders in durability
— POA documentation is the financial pivot: stage 3/4 pressure ulcer, CAUTI, CLABSI, falls, foreign object — present on admission is reimbursed; hospital-acquired is not, and worst quartile hospitals lose 1% of all Medicare payments under the HAC Reduction Program
— Universal Protocol (verify, mark, time-out) prevents wrong-site surgery
— Bundles prevent CLABSI, CAUTI, VAP, SSI, HAPU, falls — know the components
— Stop transfusion first for any acute reaction; ABO mismatch is a clerical/ID failure at the bedside
— Near misses are reported with equal rigor — the richest learning source
— PSO-submitted data is legally privileged, enabling honest reporting
— CCS: always include orders for counseling patient/family, incident report, and risk management consult alongside clinical stabilization

