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Influence of sample temperature on reflectance photometry and electrochemical glucometer measurements
A Fazel1, Z Koutoubi, T B Sorg
1Department of Medicine, Veterans Affairs Medical Center, Dayton, Ohio 45428, USA.
Objective:
A study was conducted to determine the influence of sample temperature on manual reflectance photometers, automatic reflectance photometers, and electrochemical glucometers.
Research Design And Methods:
Aqueous and blood-based control solutions were tested at temperatures ranging from 25 to 44 degrees C. With the Accu-Chek 3, One Touch, and Satellite G glucometers, multiple glucose determinations were performed on each sample.
Results:
The results indicate that the manual reflectance photometry glucometer is prominently influenced by variation in sample temperature. The effect of sample temperature is greatest at high glucose levels.
Conclusions:
Caution may be required in the interpretation of manual reflectance photometry glucometer measurements in febrile or hypothermic diabetic patients.