[Blood-sugar determination with the Reflomat (author's transl)]

A total of 710 blood samples was tested with the new Reflomat apparatus. There was a good correlation with the GOD-Perid method (correlation coefficient for serum r = 0.993; for whole blood r = 0.983). In two thirds of the cases deviation from the reference value was less than +/- 7 mg/dl for serum, less than +/- 14 mg/dl in 95%, the corresponding values for whole blood +/- 11 mg/dl and +/- 22 mg/dl, respectively. The percentage deviation from the reference value was below +/- 13% for serum, and under +/- 22% for whole blood in 95% of measurements. In the range under 100 mg/dl variations were much more marked for whole blood than at the higher levels (100-350 mg/dl). The accuracy of the Reflotest¿ system and the accuracy from day to day proved to be exceptionally good. In the range 100-200 mg/dl the variation coefficient was between 1 and 2%.