Blood Glucose Monitoring

We have evaluated a new blood glucose test-strip (Visidex II, Ames), which does not require washing with water after contact with blood. Visidex II showed a significant negative bias when compared with a similar diagnostic strip (BM 20-800, Boehringer) and with the Beckman II glucose analyser (p less than 0.001 in both cases), and a poorer correlation with either method than BM strips with the Beckman II. A significant number (6.3%) of Visidex strips in this study were unreadable due to removal of the colour pads on blotting, and some difficulty was reported by patients in reading values around 6-8 mmol/l. Visidex II can safely be stored in the refrigerator and developed strips may be stable longer than BM strips. A significant error in reading was noted if the incubation time was varied by +/- 5 seconds. Further experience and perhaps some modifications may be necessary before Visidex II can be recommended for widespread use.

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Evaluation of Visidex II—A New Strip for Blood Glucose Measurement

Hutchison

MacCuish

1985

Diabetic Medicine

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Effect of Storage in Light and Dark on Accuracy of Blood Glucose Test Strips

Anderson

1985

Diabetic Medicine

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Two-hundred and twenty-five BM 20-800 blood glucose test strips were developed from a series of blood samples spanning their glucose range. Groups of 75 strips were stored under three differing sets of conditions. The change with time of the mean indicated blood glucose concentration of the strips during storage in light or dark conditions was recorded. Strips stored on a ward chart in the light faded slowly with time. Storing with a Sellotape covering accelerated the fading process. In contrast developed strips were found to be stable when stored in a sealed tin in the dark. Three rules of thumb have been derived to allow retrospective estimation of the initial indicated blood glucose concentration of strips stored for up to 10 days on a bedside chart in the light without a Sellotape covering. Sealed tin storage would allow clinic based quality control of home blood glucose monitoring.

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Stability of Reacted Reagent Strips (Chemstrips) for Blood Glucose Determinations

et al. 1981

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Reacted Chemstrips were placed in an unsealed envelope or in desiccator vials which were opened daily after 1, 2, 3, 4, 5, 6, 7, and 14 days. The time of change of the reading for 2 days in a row by all three observers was noted. Readings in the low and normal range were most stable and can be considered reliable for 2-3 days when protected from light. If in a desiccator tube, the strips can be reliably reread when the tube is opened as long as 7 days later. In a separate study, strips were left exposed on the laboratory bench or placed in a vial and read frequently for 6 h and again at 28 h. This exposure, comparable to the CS being taped to a hospital record, results in reading changes as early as 2 h after reaction.

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Blood Glucose Monitoring

Cited by 4 publications

References 3 publications

Evaluation of Visidex II—A New Strip for Blood Glucose Measurement

Evaluation of Visidex II—A New Strip for Blood Glucose Measurement

Effect of Storage in Light and Dark on Accuracy of Blood Glucose Test Strips

Stability of Reacted Reagent Strips (Chemstrips) for Blood Glucose Determinations

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