1. A medical testing machine, comprising: a testing system for performing a medical test on media sampled from patients, each test instance having an outcome; a reader that obtains, for each of a plurality of test instances, an identifier of the particular patient from which the media was sampled; a processor that causes test outcomes to be stored in a mass storage memory in association with their respective patient identifiers; and a computerized retrieval system that enables a user to specify a particular patient identifier and cause the computerized retrieval system to retrieve from the mass storage memory test outcomes associated with the particular patient identifier.