A system, method and computer program for programming a medical device to administer a medication to a patient includes the medical device, a scanner that may be associated with a point of care system, and a medication management unit. When the document is presented at a point of presentment, the document is scanned into a document-processing machine and the actual signature is compared against all valid account signatures. Furthermore, there is provided a restricting member which inhibits the first state or the second state from being maintained. The sensor interface circuit also includes a monitoring module for receiving the analog sensor signal and generating the digital sensor signal in response thereto.