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诊断铅中毒的化验指标,过去我国常用的有尿铅、尿粪哺啉,点彩红细胞、网织红细胞以及硷凝红细胞等。由于尿粪哺啉、点彩红细胞等的特异性不高,阳性率也低,以及点彩红细胞等异常红细胞的计数手续繁杂而费时等原因。近几年来在实际工作中已逐渐淘汰,仅以尿铅测定的结果作为化验依据。但是在实际工作中发现尿铅的含量,往往与临床表现不相符合,在诊断时有一定困难。近十余年来国外不少报道应用尿中δ—氨基乙酰丙酸(以下简称δ—ALA),作为铅中毒的化验诊断指标,近
Diagnostic lead poisoning test indicators used to be used in our country before the urine lead, urine fecal nuptse, dot red blood cells, reticulocytes and alkaline coagulation of red blood cells. Due to urinary manure, erythrocytes and other spot color is not high, the positive rate is low, as well as erythrocytes erythrocytes erythrocytes erythrocyte count procedures complicated and time-consuming and other reasons. In recent years in the actual work has been phased out, only the results of the determination of urinary lead as laboratory basis. However, the actual work found that the content of urinary lead, often inconsistent with the clinical manifestations, there are some difficulties in the diagnosis. Nearly ten years many foreign reports of urinary δ-aminolevulinic acid (hereinafter referred to as δ-ALA), as a laboratory test for lead poisoning indicators of diagnosis, near