What are the limitations of fingerstick glucose monitoring in IV insulin therapy?

Updated: Nov 06, 2018
  • Author: Guy W Soo Hoo, MD, MPH; Chief Editor: George T Griffing, MD  more...
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In addition, fingerstick glucose measurements tend to be overestimated by the point-of-care devices, and the difference in glucose between capillary blood and venous blood can be as high as 70 mg/dL. Adjusting insulin infusions based on inaccurate glucose measurements may lead to errors in insulin dose on both ends of the spectrum, as well as a failure to detect hypoglycemia. [9, 10]

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