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Title Development and Validation of XML-based Calculations within Order Sets
Author(s) Nathan C. Hulse, PhD, Guilherme Del Fiol, MD, MS, Roberto A. Rocha, MD, PhD
Source AMIA 2005 Symposium Proceedings, Pages 360-364
Publisher Omnipress
Publication Date Nov. 2005
Abstract We have developed two XML Schemas to support the implementation of calculations within XML-based order sets for use within a physician order entry system. The models support the representation of variable-based algorithms and include data elements designed to support ancillary functions such as input range checking, rounding, and minimum/maximum value constraints. Two clinicians successfully authored 57 unique calculated orders derived from a set of 11 calculations using the models within our authoring environment. The resultant knowledge base content was subsequently tested and found to produce the desired results within the electronic physician order entry environment.

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