Patient Safety Risks and Solutions: Harms and the Interventions That Work
This domain tests knowledge of the harms that matter most and the interventions that reliably reduce them, ranked by strength. Expect items that ask you to choose the most effective control rather than the most familiar one.
Core rules and concepts
- Know the high-volume, high-severity categories: medication events, healthcare-associated infections (CLABSI, CAUTI, SSI, ventilator-associated events, C. difficile), falls with injury, pressure injuries, VTE, wrong-site surgery, retained surgical items, handoff failures, diagnostic error, sepsis, alarm fatigue, and health IT hazards.
- Hierarchy of effectiveness: strong actions change the system so the error cannot reach the patient (forcing functions, constraints, standardization, simplification, automation); intermediate actions support memory and detection (checklists, double checks, added staffing); weak actions depend on humans remembering (education, warnings, new policies).
- Bundles work only when every element is delivered and measured. The CLABSI bundle: hand hygiene, maximal sterile barrier precautions, chlorhexidine skin antisepsis, optimal site selection, and daily review of necessity with prompt removal.
- The WHO Surgical Safety Checklist has 19 items across three phases: sign in before induction, time out before incision, sign out before the patient leaves the operating room.
- Medication safety: high-alert drug lists, independent double checks, standardized concentrations, smart pump libraries, barcode administration, look-alike/sound-alike separation, and reconciliation at transitions.
- Structured handoffs (I-PASS: illness severity, patient summary, action list, situation awareness, synthesis by receiver) and read-back of verbal orders reduce communication failures.
Worked example
Two insulin overdoses occur within a month. The weak response is retraining the nurses. The strong response asks why the system allowed the error: were the vials look-alike, was the order written in units or milliliters, were two nurses checking against a flawed protocol, was the pump library outdated? Correct actions combine strong controls (separate storage, distinct labeling, standardized order sets, pump limits with hard stops) with independent double checks as an intermediate layer, and education as supporting, not primary.
Traps
- Choosing education as the primary fix - it is almost always the lowest-yield option.
- Assuming a checklist is in use because it exists; fidelity must be audited.
- Blaming the last clinician to touch the patient.
- Ignoring diagnostic error and health IT risks because they are harder to count.