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选擇尿鉛量为0.06毫克/升以上,卟啉为阳性的鉛中毒患者32例,每天收集尿二次,第一次为白天自上午七时至下午七时,第二次为晚間自下午七时至次晨七时。測定結果:晚間尿鉛較白天增高者18例,占56.25％;白天尿鉛較晚間增高者11例,占34.37％;尿鉛增减范圍动搖在0.01～0.5毫克/升之間,但其含量都超过0.05毫克/升。另有三例白天晚間无变动。 卟啉阳性分为弱、中、强三种,白天晚間阳性程度不变者15例,占46.87％;阳性程度虽有变化,但
Select the amount of lead in urine of 0.06 mg / L or more, porphyrin-positive 32 cases of lead poisoning, urine collected twice a day, the first day from 7 am to 7 pm, the second for the evening since the afternoon 7 am to 7 am The results showed that 18 cases (56.25%) of urinary lead were higher in the evening than that in the daytime, 11 cases (34.37%) of the urinary lead were higher in the daytime and 0.01-0.5 mg / L in the range of urine lead The content is more than 0.05 mg / L. Another three cases no change during the day and night. Porphyrin positive divided into weak, moderate and strong three, 15 cases of the same degree of positive changes during the day and night, accounting for 46.87%; although the degree of positive changes, but