红细胞内游离原卟啉(FEP)为缺铁性红细胞生成期的特异性诊断指标。近年来,已将其广泛用于小儿铁缺乏症的群体防治研究中。虽然,有关耳垂取血与指尖取血对血红蛋白(Hb)测定的影响已有报告,但据作者手头文献尚未见有关耳垂取血与指尖取血对FEP测定影响的报告。为探讨耳垂取血与指尖取血对FEP测定的影响,作者对100名住院患儿进行了观察,现将结果报告如下: 对象及方法对象:住院患儿100名,男54名,女46名,年龄6月～14岁。其中上呼吸道感染20 Erythrocyte free protoporphyrin (FEP) is a specific diagnostic indicator of the formation of iron-deficiency erythropoiesis. In recent years, it has been widely used in the study of population control of iron deficiency in children. Although there are reports on the influence of blood sampling on the hemoglobin (Hb) in the blood of the earlobes and fingertips, there is no report about the influence of the earlobe and the fingertips on the FEP measurement according to the authors’ literature. To investigate the impact of earlobe blood sampling and fingertip blood collection on the determination of FEP, the author of 100 hospitalized children were observed, the results are reported as follows: Subjects and methods Object: 100 inpatients, 54 males and 46 females Name, age from June to 14 years old. Of which upper respiratory tract infection 20