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我院NICU及新生儿病房自1996年3月至1996年12月，应用放射免疫法测定了新生儿窒息、感染和健康新生儿共120例血清T3和rT3，并进行了动态观察。结果表明；①危重病新生儿的rT3升高程度与疾病的严重程度呈正相关，特别是rT3＞4000ng／L者，提示疾病危重，预后不良；②危重病新生儿的T3/rT3值与疾病的严重程度呈负相关，特别是T3/rT3值＜0.5者，提示疾病危重，预后不佳；③血清rT3的水平及T3／rT3的比值，可作为临床疾病严重程度和预后估计的指标之一。
In our hospital NICU and neonatal ward from March 1996 to December 1996, radioimmunoassay was used to measure the newborns of asphyxia, neonates and healthy 120 cases of total serum T3 and rT3, and the dynamic observation. The results showed that: ① critically ill newborns rT3 elevated degree and the severity of the disease was positively correlated, especially rT3> 4000ng / L, suggesting that critically ill patients with poor prognosis; ② critically ill neonates T3 / rT3 value and disease The severity of the disease was negatively correlated, especially the value of T3 / rT3 was less than 0.5, which suggested that the disease was critically ill and had a poor prognosis. The level of serum rT3 and the ratio of T3 / rT3 were considered as one of the indicators of the severity and prognosis of clinical disease.