Abstract：
Micronutrients, including trace elements and vitamins, are essential nutrients in human metabolism. The majority of patients who need nutritional therapy have different levels of micronutrient deficiency for various reasons, which can lead to disease progression and affect clinical outcomes. In order to further standardize the application of micronutrients in medical nutrition therapy, nearly 100 experts in related fields were organized by the Chinese Society of Parenteral and Enteral Nutrition (CSPEN) to elaborate on the role and dosage of micronutrients based on the existing evidence-based medical evidence in common clinical conditions such as severe illness, surgery, burns, inflammatory bowel disease, short bowel disease, malignant tumors, chronic liver and kidney disease, elderly comorbidity, weight loss and chronic infection. Finally, 13 questions and 30 recommendations were put forward to provide reference for clinical standard application of parenteral and enteral nutrition in adult patients.
微营养素包括微量元素和维生素，是人体代谢中不可或缺的营养素。临床上多数需要营养治疗的患者，因多种原因存在不同程度的微营养素缺乏，导致疾病进展并影响临床结局。为进一步规范医学营养治疗中的微营养素的应用，由中华医学会肠外肠内营养学分会组织国内近百位相关领域的专家，基于现有的循证医学证据，围绕微营养素的作用和应用剂量，针对临床常见疾病状态如重症、手术、烧伤、炎症性肠病、短肠综合征、恶性肿瘤、慢性肝（肾）疾病、老年共病、减重营养管理和慢性感染等维生素和微量元素的使用情况等，最终提出13个问题、30条推荐意见，旨在为成人患者肠外肠内营养的临床规范应用提供参考。.
微营养素包括微量元素和维生素，是人体代谢中不可或缺的营养素。临床上多数需要营养治疗的患者，因多种原因存在不同程度的微营养素缺乏，导致疾病进展并影响临床结局。为进一步规范医学营养治疗中的微营养素的应用，由中华医学会肠外肠内营养学分会组织国内近百位相关领域的专家，基于现有的循证医学证据，围绕微营养素的作用和应用剂量，针对临床常见疾病状态如重症、手术、烧伤、炎症性肠病、短肠综合征、恶性肿瘤、慢性肝（肾）疾病、老年共病、减重营养管理和慢性感染等维生素和微量元素的使用情况等，最终提出13个问题、30条推荐意见，旨在为成人患者肠外肠内营养的临床规范应用提供参考。.
摘要：
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