During annual maintenance of equipment, which action is performed?

• A. Visual inspection of outer casing
• B. Recalibration
• C. Update firmware
• D. Check power cords for fraying or wear

Answer: (B)

Regular maintenance centers on keeping the device’s output accurate. Recalibration is the process of comparing the actual output to a known standard and adjusting the settings so they meet the specified tolerances. This ensures the therapy delivered is consistent with what the manufacturer intends, which is crucial for both effectiveness and safety. Visual inspection of the outer casing and power cords are safety and wear checks rather than actions that restore output accuracy. Firmware updates may occur if needed, but they aren’t the routine step that guarantees correct treatment delivery each year.