The greatest challenge [in designing for the consumer] is recognizing the limited knowledge and abilities of a home user. There needs to be an understanding that the home patient is not a medical professional and is not exposed or practiced with the multitude of technologies the designer may have previous experience with. It is the designers responsibility to not only create a device that is effective for the application being designed for, but that is also intuitive for the home user to understand and utilize. This becomes even more prominent in a potential emergency situation. The operation of the device should be such that anyone in the home could utilize the device, on themselves or another as need be, without needing extensive knowledge or training of the device and/or procedure for usage.