Just like insulin, glucose meters and strips can be affected by low (freezing) or high temperatures, so remember not to leave your blood glucose monitor in your car, in direct sunlight, or anywhere that gets extremely hot or cold. 1. Have a sugary drink or snack - like a small glass of fizzy drink (not a diet variety) or fruit juice, 4 to 5 jelly babies, 4 to 6 glucose tablets or 2 tubes of glucose gel.