Abstract: In one embodiment, an external first medical device includes a treatment module for administering a first treatment. The first medical device also includes a warning module for transmitting, before the first treatment is administered, a warning about the impending administration of the first treatment. The warning is suitable for receipt by a second medical device that could be attached to the patient unbeknownst to the first device, and which could be impacted by the first treatment. As such, the second medical device is given the opportunity to take a defensive action.

Abstract: In one embodiment, an external second medical device is capable of being attached to a patient. The second medical device includes an operation module that is capable of operating at different capacities, such as at a first capacity and a second capacity. The second medical device also includes a receiver for receiving a warning about an impending administration of a first treatment to the patient, by a first medical device that does not know about the second medical device being attached to the patient. In response to receiving the warning, the second medical device undertakes a defensive action, whereby the operation of the operation module is capable of being performed at the second capacity. This way, the first treatment, when administered, will impact the second medical device less or not at all.