Which task is correctly matched with its maintenance interval?

• A. Recalibration — monthly
• B. Check power cords for fraying or wear — annual
• C. Recalibration — annual
• D. Check power cords for fraying or wear — monthly

Answer: (C)

Maintenance scheduling for clinical devices often separates accuracy checks from safety inspections. Recalibration is about ensuring the device’s measurements stay true over time, and the drift that can affect accuracy tends to be addressed with an annual recalibration schedule. This keeps the device dependable without overloading maintenance resources, since large changes in calibration generally accumulate slowly.

Safety checks, like inspecting power cords for fraying or wear, are essential but typically occur more frequently because they address immediate hazards. Damaged cords pose an electrical risk and should be checked regularly—often before each patient use or on at least a monthly basis—rather than waiting a full year.

Therefore, matching recalibration with an annual interval reflects standard practice for maintaining measurement accuracy, while cord inspections belong to a more frequent safety maintenance routine.