Temperature influences blood glucose
The clinic investigated further, over a seven-year period, taking a venous sample at the same time as a fingerprick measurement. This produced 6540 results from 124 patients with type 1 diabetes and nearly 60,000 results from 2663 patients with type 2 diabetes.
When the mean outside temperature was 5°C, the plasma glucose averaged 10.9mmol/L while the fingerprick average was 11.4mmol/L. At 10°C, the respective results were 10.7mmol/L and 11.1mmol/L. The differences were statistically significant. The reverse