Abstract: A patient is rewarded for performing a medical test or for maintaining medical test results within desired levels. Medical test data is generated and transferred for use by reward firmware in a cartridge, for example. Reward information is provided to the patient to motivate or encourage the patient to conduct medical tests and/or to maintain medical test results within certain levels. The cartridge can be inserted into an electronic controller, e.g. a handheld video-game controller, cellular telephone, or other device. Transmission of data and/or encouragement to and from a remote location provides additional advantages.