Stage 4: CPOE for use by any clinician is added to the nursing and CDR environment along with the second level of clinical decision support capabilities related to evidence based medicine protocols.

• 阶段4：护理和CDR环境中增加了为被所有临床医师使用的CPOE，同时实现了涉及到根据基于医学协议的第二水平临床决策支持。