What is the role of blood glucose testing in patients with hypoglycemia (low blood sugar)?

Updated: Sep 12, 2019
  • Author: Osama Hamdy, MD, PhD; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Answer

Keep in mind that whole blood glucose values may be spuriously low in polycythemia rubra vera because of the unequal distribution of glucose between erythrocytes and plasma, excessive glycolysis by erythrocytes, or both. Low blood glucose values in leukemia are due to excessive glycolysis by leukocytes and in hemolytic crisis from excessive glycolysis by nucleated erythrocytes. In the polycythemic patient or in serum of the leukemic or hemolytic patient, prompt measurement of glucose in plasma to which an antiglycolytic agent has been added should provide accurate results.


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