Medical Equipment and Utility Systems Safety
Domain 10 tests medical equipment and utility systems safety: inventory, preventive maintenance, calibration, recalls, incident reporting, and the safety of electrical, water, HVAC, medical gas, vacuum, and emergency power systems. Expect questions on NFPA 99, maintenance intervals, utility failure, and equipment incident investigation.
Core rules
- Maintain an equipment inventory with risk-based maintenance intervals. Preventive maintenance and calibration are documented; equipment with failed checks is removed from service.
- Recalls and alerts require identification of affected devices, quarantine or replacement, communication, and documentation. Do not rely on the manufacturer alone.
- Medical gas systems require verification of labeling, purity, pressure, and cross-connection prevention. Cylinders are secured upright; storage is separated from oxidizers.
- Utility systems: emergency power is tested and maintained; generators have fuel and load testing; water systems have Legionella water management plans; HVAC controls pressure relationships and filtration; vacuum and medical air are monitored.
- Report equipment-related injuries and failures; investigate and trend them.
Worked example
An infusion pump recall affects 20 serial numbers. The biomed department matches the list to inventory, removes affected pumps from service, applies the manufacturer's correction or replaces them, documents serial numbers and dates, and checks that no affected pump is in use. A preventive maintenance sticker alone would not satisfy the recall; the specific device must be verified.
Traps
Do not assume a current preventive maintenance sticker means a device is safe after a recall. Do not treat utility failures as purely facilities issues; they affect patient care and require clinical contingency plans. Do not store oxygen cylinders unsecured.