Comparison Of The First Or The Second Drop Of Finger Blood For Rapid Blood Glucose And Venous Plasma Glucose Of The Elderly With Diabetes

Objectives:To compare the first or the second drop of finger blood glucose and the venous plasma glucose of the elderly with diabetes, then clear the difference between the first drop of finger blood glucose and the second drop of finger blood glucose, and analyze the collection with venous plasma glucose of the same time, in order to provide the effective reference of rapid blood glucose.Methods:We told the88elderly with diabetes patients not to have anything from10o’clock in the evening until nurse mesured their FDFG, SDFG and VPG at next6o’clock. And then2hours after breakfast nurse measured their FDFG, SDFG and VPG again. VPG is the gold standard.Methods of mesuring finger blood glucose:tell the patients to clean and dry the hands, and then droop arms for a few seconds where they are lower than the heart which can let the blood flow to the finger. Next use75%alcohol to disinfection finger and dry it. Puncture the skin, obtain the first drop of finger blood glucose before wipe it, then obtain the second drop of finger blood glucose.Results:1.Accuracy of the measuring results:According to the Management and Clinical Practices of Portable Blood Glucose Tester in Medical Institutions(tial) to measure the accuracy. Comparing FDFG and VGP in less than4.2mmol/L numbers, there were87.5%of the measuring results error in the range of±0.83mmol/L, and Comparing SDFG and VGP there were75.0%Comparing FDFG and VGP in more than4.2mmol/L numbers, there were91.1%of the measuring results error in the range of±20%, and Comparing SDFG and VGP there were87.5%. It was in line with regulatory requirements. With the correlate analyze between FDFG and VPG, r was0.967, p was0.000; in the same between FDFG and VPG, r was0.969, p was0.000. FDFG and SDFG were Significant correlation with VPG.2. Comparation of FDFG, SDFG of fasting and2hours aftering breakfast with VPG at the same time: comparing of FDFQ SDFG of fasting with VPG at the same time, F=1.040, p=0.355; comparing of FDFG, SDFG of2hours after breakfast with VPG at the same time, F=0.988, p=0.012. It was no difference between FDFG, SDFG of fasting and2hours aftering breakfast and VPG at the same time(P>0.05).3. Comparation of FDFG, SDFG and VPG at different blood glucose concentration:we redivided into four groups according to VPG, they were group2.31mmol/L-6.10mmol/L, group6.21mmol/L-11.13mmol/L, group11.23mmol/L-19.67mmol/L and goup>20.0mmol/L. In goup2.31mmol/L-6.10mmol/L, F=2.095,p=0.126; in group6.21mmol/L-11.13mmol/L, F=0.534, p=0.587; in group11.23mmol/L-19.67mmol/L, F=0.028, p=0.440; in goup>20.0mmol/L, F=0.867, p=0.972. It is no Statistical significance of FDFG, SDFG with VPG in Low, medium and high blood glucose concentration(P>0.05).4. The curve estimation of FDFG, SDFG and VPG(linear):it was good correlation of the comparation of FDFGt, SDFG of fasting and2hours aftering breakfast with VPG at the same time, p<0.001; it was good correlation of the comparation of fasting FDFG and SDFQso do2hours after breakfast of FDFG and SDFQ p<0.001.Conclusion:1.We can do effective rapid glucose measurement with the first or the second drop of finger blood under standardized practice2. We advise to measure rapid glucose with the first drop of finger blood of elderly with diabetes.