Final answer:
Defibrillators, especially Automated External Defibrillators (AEDs) found in public places, should be checked at least daily and more thoroughly according to a regular maintenance schedule to ensure they are always ready for use.
Step-by-step explanation:
The frequency at which a defibrillator and its associated equipment should be tested for functionality is typically determined by the manufacturer’s guidelines and local regulations. However, it is generally recommended that Automated External Defibrillators (AEDs) are checked regularly to ensure they are ready for use in an emergency.
In many settings, including hospitals and emergency response units, it is standard practice to check defibrillators at the change of each shift to guarantee their readiness, which would be option D) At the change of every shift. For locations where shifts may not apply, such as in public places with AED installations, it is advised for routine daily checks to occur, which ensures that issues are identified and rectified promptly.
Additionally, AEDs should be maintained according to a maintenance schedule which could involve more extensive periodic checks (weekly, monthly) to verify battery life, electrode pad expiration, and device software updates. Thus, while daily visual or electronic checks are recommended, a more thorough check-up schedule should be in place as well.