Korean Journal of Anesthesiology

The Korean Society of Anesthesiologists (대한마취통증의학회)
권호 표지

Assessment of Blood Glucose Values Measured by Blood Gas Analyzer or Portable Glucometer

혈액가스 분석기와 휴대용 혈당측정기로 측정된 혈당 수치의 평가

Park, Hue-Jung;Park, Chul-Soo;Park, Chong-Min;Ryu, Keon-Hee;Chang, Hae-Wone;Cho, Eun-Jeong;Lee, Yoon-Ki
박휴정;박철수;박종민;유건희;장혜원;조은정;이윤기

  • Published : 20060500
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Abstract

Background: A portable glucometer is commonly used to immediately check the blood glucose level. In the anesthetic field, some blood gas analyzers can also give a rapid indication of the blood sugar level but the accuracy is unknown. Therefore, this study assessed the accuracy of the blood glucose values measured by either a blood gas analyzer or portable glucometer. Methods: Venous blood from diabetic patients was used to measure the glucose level with either a blood gas analyzer or a portable glucometer. The difference and 5% deviation from reference values was analyzed. These values were also assessed using a Bland-Altman plot and clinical significance was examined using a Clarke error grid. Results: The differences from the reference values were smaller using the blood gas analyzer (1.3 $\pm$ 7.8 mg/dl) than using the portable glucometer (-5.1 $\pm$ 16.7 mg/dl)(P ＜ 0.01). 73.4% of the values measured by the blood gas analyzer and 40.0% of those measured by the portable glucometer were within 5% of the reference value. The 95% limits of agreement in the difference ranged from -14.3 to 16.9 in the blood gas analyzer and -38.5 to 28.2 in the portable glucometer. Error grid analysis showed that 100% of the values measured by the blood gas analyzer were located in zone A. When locating the values measured using the portable glucometer, 95.6% were located in zone A, and the remaining 4.4% are located in zone B. Conclusions: The blood gas analyzer measures the blood glucose more accurately than the portable glucometer. However, the blood glucose values measured by the portable glucometer are clinically acceptable.

Keywords

References

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