The influence of blood oxygen tension on the glucose level measured by a handy blood glucose analyzer (Toecho Super)
Takezaki, T.; Nakao, M.; Niinai, H.; Nakatani, K.; Kawaguchi, R.; Hanaki, C.; Nakao, M.
Masui. Japanese Journal of Anesthesiology 43(4): 589-593
1994
ISSN/ISBN: 0021-4892 PMID: 8189628 Document Number: 423031
A handy blood glucose analyzer (Toecho Supper), using disposable enzyme electrodes, is widely used not only for the self-settings such as the ICU or the operating room. Recently we reported that the measured glucose value was lower compared with the true reference data, when oxygen tension was high. We investigate the interaction between the blood glucose levels and oxygen tension in vitro using 5 levels of glucose and 5 levels of oxygen tension. Measured glucose value decreased linearly as oxygen tension rose with a high correlation factor (0.816-0.996). The measured glucose level (mg cntdot dl-1) could be estimated by the reference data minus one tenth of oxygen tension (in mmHg). Therefore we conclude the measured glucose value is dependent only on oxygen tension but not on the range of glucose level. The reference glucose value can be estimated when oxygen tension is available.