Blood sugar level given in terms of whole blood, but most laboratories now measure and report plasma or serum glucose levels. Because red blood cells (erythrocytes) have a higher concentration of protein (e.g., hemoglobin) than serum, serum has a higher water content and consequently more dissolved glucose than does whole blood. To convert from whole-blood glucose, multiplication by 1.14 has been shown to generally give the serum/plasma level To prevent contamination of the sample with intravenous fluids, particular care should be given to drawing blood samples from the arm opposite the one in which an intravenous line is inserted. Alternatively, blood can be
Blood, toil, tears, and sweat The motion passed unanimously. This was the first of three speeches which he gave during the period of the Battle of France, which commenced on 10 May. Churchill had used similar phrases earlier, such as "Their sweat, their tears, their blood" in 1931, and "new structures of national life erected upon blood, sweat, and tears". Churchill's sentence, "I have nothing to offer but blood, toil, tears, and sweat," has been called a paraphrase of one uttered on 2 July 1849 by Giuseppe Garibaldi when rallying his revolutionary forces in Rome: "I offer hunger, thirst, forced marches, battle, and death." As