1. A system, comprising: an imager comprising: an image sensor for capturing images of (i) a symbol comprising encoded patient information and (ii) an attribute of a medication package, the image sensor comprising a plurality of pixels formed in a plurality of rows and columns of pixels; a lens for focusing images on the image sensor; and a digital link for transmitting data comprising patient information and an attribute of a medication package; a computer connected to the digital link for receiving the data from the imager's digital link; and a database coupled to the computer for correlating the data to a patient record and a medication package attribute library; wherein the attribute comprises a pattern of symbols and/or a grid pattern; wherein the attribute has a predetermined size characteristic; and wherein the system processes a captured image using the predetermined size characteristic to determine a size of a medication.