Dörner K, Dorn-Zachertz D
Universitätskinderklinik Kiel.
Eur J Clin Chem Clin Biochem. 1991 Jun;29(6):411-3.
Comparison of cholesterol values from venous blood and skin puncture blood is difficult, because biological differences between both materials may be concealed or increased by the preanalytical imprecision of skin puncture. In 12 adults, we studied the variance of cholesterol and urea determination in 8 blood samples obtained by the puncture of 8 fingers and compared the results with the 8-fold determination of a venous sample drawn simultaneously. Our results show that the additional imprecision of skin puncture is low, and that the differences are not statistically significant. The mean values for cholesterol were 3.9% lower in skin puncture plasma than in venous plasma, whereas the mean values for urea were very similar.
比较静脉血和皮肤穿刺血中的胆固醇值很困难，因为两种样本之间的生物学差异可能会被皮肤穿刺前分析的不精确性掩盖或放大。我们对12名成年人进行了研究，采集了8根手指穿刺得到的8份血样，测定其中胆固醇和尿素的变化，并将结果与同时采集的一份静脉血样重复测定8次的结果进行比较。结果显示，皮肤穿刺额外的不精确性较低，且差异无统计学意义。皮肤穿刺血浆中胆固醇的平均值比静脉血浆中的低3.9%，而尿素的平均值非常相似。
