管饲老年患者全膳食中10种微量元素的测定及其意义

Determination of ten trace elements in total diets of elderly tube-fed patients and its significance

对我院管饲老年患者十一种不同配方的全膳食中锌、铜、铁、锰、硒、钴、铬、钼、铅、镉等十种微量元素及患者血中锌、铜、铁、硒进行了测定。结果表明,全膳食中锌、钼、硒的摄入量还嫌不足,患者血中这些元素的水平也较低。鉴于微量元素在许多老年病病因及衰老等方面的重要作用,对管饲全膳食配方进行适当的改进,以满足患者微量元素的需要,收到更好的临床效果是很有必要的。

The trace elements in total diets of 11 different ingredients of elderly tube-fed patients were determined. 17 elderly tube-fed hospitalized patients were investigated with regard to serum Zn, Ou, Fe and whole blood Se in order to study the intake of trace elements and nutriture in elderly tube-fed patients. The result showed that the contents of Fe, Mn and Cr were within the range of Safe and Adequate Daily Dietary Intake(SADDI) values. The contents of Cu in part of total diets were lower. However, the levels of Zn, Mo and Se which play an important role in human health were lower than that of low limit of SADDI. In response to the lower intake, serum Zn, Cu and whole blood Se were lower in 17 elderly tube-fed patients, compared with that in controls. It is suggested that appropriate improvement of the ingredients of total diets to meet the need of trace elements of patients is often neccessary.