Volume 10, Issue 2 (Spring 2024)                   JCCNC 2024, 10(2): 147-154 | Back to browse issues page


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Abedzadeh M, Azizi-Fini I, Maghami M, Yadollahi S. Comparing Four Methods for Preparing the Capillary Blood Sampling Site. JCCNC 2024; 10 (2) :147-154
URL: http://jccnc.iums.ac.ir/article-1-526-en.html
1- Department of Critical Care Nursing and Emergency, Trauma Nursing Research Center, Faculty of Nursing and Midwifery, Kashan University of Medical Sciences and Health Services, Kashan, Iran.
2- Department of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
3- Department of Critical Care Nursing and Emergency, Trauma Nursing Research Center, Faculty of Nursing and Midwifery, Kashan University of Medical Sciences and Health Services, Kashan, Iran. , Yadollahi.Safoura@gmail.com
Abstract:   (496 Views)
Background: Capillary blood glucose measurement is one of the most important diagnostic procedures in managing and treating patients, especially those with diabetes. Since the preparation method of the capillary sampling site affects the blood glucose (BG) level, it is essential to identify the best preparation method with the least error estimation. This study compares the capillary BG level with the venous BG level after preparing the sampling site with four different preparation methods. 
Methods: This quasi-experimental study has a single-group design. It was conducted on 85 nursing and midwifery students of Kashan University of Medical Sciences and Health Services, in 2022. The subjects who met the inclusion criteria were selected using convenience sampling. Capillary BG was measured from each finger using a glucometer while each finger was prepared with alcohol, water, soap and water, or no washing. Then, the venous blood sample of the same person was sent to the laboratory. The data were analyzed by SPSS software, version 22. The Friedman and Dunn post hoc tests were used to compare venous and capillary BG levels obtained using different methods. The significance level was set at P<0.05.
Results: There were significant differences between venous BG levels and capillary BG levels in blood sampling site preparation with alcohol (P<0.05). Preparation with alcohol had the highest (7.34±27.03), and the soap and water had the lowest (-0.67±14.82) estimation errors. 
Conclusion: The use of alcohol to prepare the blood sampling site, which is a common practice in many healthcare facilities, may misrepresent BG levels and lead to misdiagnosis and treatment. Therefore, it is suggested that the soap and water cleaning method be used instead, which has the lowest error compared to venous BG. 
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● Measuring the precise level of blood glucose is very critical in the diagnosis and treatment of patients.
● One of the common methods of measuring blood glucose in medical settings and at home is capillary blood glucose.
● Various factors affect the capillary blood glucose level, including the preparation of the sampling site.
● Cleaning the blood sampling site with alcohol, a common preparation method may show false results.
● Based on the results of the present study, the suggested method with the lowest error estimation is washing the sampling site with soap and water.
Plain Language Summary 
Measuring the capillary blood glucose with a glucometer is one of the usual methods of monitoring blood glucose in medical centers and homes. Since the blood glucose level determines the appropriate treatment method, this measurement must be done accurately. One of the most effective factors in measuring capillary blood glucose is the preparation of blood sampling sites. So, using some disinfectants or not drying these substances from the skin before taking the sample can cause errors in showing blood glucose levels. In this study, four methods of alcohol, water, without using any substance, and soap and water were compared, and the blood glucose resulting from each method was compared with the vein blood glucose level of the same person. The results showed that the best method is to wash the blood sampling site with soap and water and dry it before sampling.

Type of Study: Research | Subject: General
Received: 2023/08/29 | Accepted: 2023/11/25 | Published: 2024/05/1

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