What happens when the magnet is removed from a cardiac device?

When the magnet is removed from a cardiac device, the device typically resumes its permanently programmed operation nearly immediately, often within 2 seconds. This swift transition allows the device to return to its usual functioning after temporarily entering a state where it may respond to the magnet, which can indicate a need for specific programming or interrogation.

This behavior is critical for maintaining the device's functionality and ensuring that it continues to monitor and respond to the patient's cardiac needs without prolonged interruption. Understanding this response is essential for healthcare professionals managing patients with cardiac devices, enabling them to react appropriately in clinical situations where magnetic fields are used for programming or diagnostics.