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Clinical Chemistry, Vol 31, 706-709, Copyright © 1985 by American Association for Clinical Chemistry
H von Schenck, L Lonnstrom and M Engstrom
We evaluated the effect of sampling of capillary blood on filter paper on the later analysis for glucose. We found the method simple and reliable. Determination at the central laboratory of glucose in blood collected onto filter paper and comparison of the results with those obtained with test strips read in reflectometers at outpatient units is easy. Collecting duplicate samples on filter paper facilitates quality control by avoiding the complications that arise from using quality- control solutions that are not directly comparable with fresh blood, and it avoids the disturbances of test strip chemistry attributable to the glycolysis inhibitors added to blood samples intended for quality control.
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