Distribution of the differences between carboxyhemoglobin measured noninvasively (SpCO) versus via blood (HbCO), rounded to the nearest full percentage.

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Round each number to the level of accuracy given.

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Presentation transcript:

Distribution of the differences between carboxyhemoglobin measured noninvasively (SpCO) versus via blood (HbCO), rounded to the nearest full percentage point. Distribution of the differences between carboxyhemoglobin measured noninvasively (SpCO) versus via blood (HbCO), rounded to the nearest full percentage point. The dashed lines around zero represent the accuracy range of ±3 percentage points, reported by the manufacturer to be ±1 SD. There are 3 individuals with SpCO − HbCO ≤ 11% and 8 individuals with SpCO − HbCO ≥ 11%. The data suggest that these monitors more frequently underestimated HbCO. From Reference 15. Dean R Hess Respir Care 2016;61:1671-1680 (c) 2012 by Daedalus Enterprises, Inc.