This instructional package, one of two designed for visually impaired students, focuses on the vocational area of medical assistant. Contained in this document are twelve learning modules organized into five units: language; receptioning; asepsis; supplies and equipment maintenance; and diagnostic tests. Each module, printed in block type, includes these elements: a performance objective page telling what will be learned, what materials will be needed, and how the student will be evaluated; information and job step pages which provide information needed to perform the activity; and detail job steps necessary to do the task. Illustrations are designed for the visually impaired. This document and CE 017 574 are one of two sets of learning modules on medical assistant written in formats designed for visually impaired and regular vocational students. The modules are part of a total set which includes over 1,300 modules written in a variety of formats on building maintenance, dietetic assistant, small engine repair, medical assistant, and graphics. (JH)