Patient Safety and Risk Management
Core concepts
Patient safety in clinical engineering centers on hazard analysis, failure mode and effects analysis (FMEA), root cause analysis (RCA), and human factors. Understand the swiss cheese model (defenses in depth), the difference between active failures (frontline errors) and latent conditions (system design), and why just culture improves reporting. Know alarm safety as a major hazard area: alarm fatigue, appropriate default limits, and escalation. Understand that most device-related harm involves use error, not device failure, and that usability and training are safety controls.
Traps
Questions often push toward blaming an individual - the safer, more accurate answer addresses system factors. Another trap: confusing FMEA (proactive, before an event) with RCA (reactive, after an event). Watch for scenarios where a device "failed" but the real issue was configuration, labeling, or workflow.
Rule of thumb
For any event, ask three questions: what happened (sequence), why (contributing factors), and what system change prevents recurrence. Fix systems, not just people.
Worked example
A nurse programs an infusion pump incorrectly. RCA reveals look-alike drug library entries and a non-intuitive screen. Corrective actions: standardize library naming, adjust default concentrations, and add a barcode check - addressing latent conditions rather than only retraining the nurse.