[Errors, resulting from storage, in the determination of 11 parameters in heparinized whole blood and plasma (author's transl)].

Abstract

Eleven parameters in heparinzed whole blood and plasma samples were investigated for storage-dependent changes. Samples were stored at +25 degrees C, and analyses were performed with the SMA 12/60 at 0, 24, 48, 72 and 96 hours after sampling. In whole blood, the following parameters increased significantly during storage: potassium calcium, phosphate, total protein. The following decreased: chloride, CO2, uric acid and bilirubin. In plasma samples, analogous effects were observed for: calcium, CO2, total protein, uric acid and bilirubin.