Abstract
The pulse oximeter, which is non-invasive and able to monitor oxygenation continuously, is popular in operating theaters and intensive care units. We compared an accurary of three new type pulse oximeters such as NONIN8700, 8500, and 8604D-LM (NONIN USA) with Biox3700 (Ohmeda USA), the accurary of which had been already evaluated by some authors. Two patients who had respiratory disease, five operated patients who had no history of cardiovascular or respiratory disease, and six normal volunteers participated in the study. The values of the NONIN8500 and NONIN8604D-LM were highly correlated with that of the Biox3700. But the NONIN8700 tended to read slightly higher than the Biox3700, because of differences in their moving averages.
