HelloWelcome to the forum @Shaggy
Either the reader or the phone app work well. They should be running the same algorithm, and provide the same results.
The reader allows you to cross-check fingerstick capillary blood glucose levels, which can be helpful, especially if a sensor is reading a bit low. Plus there is often a bit of a lag after hypoglycaemia before sensor glucose shows the rise in levels.
Have you been recommended the ‘15 rule’ for treating levels below 4.0mmol/L? Take 15g of fast acting carbohydrate, wait 15 minutes and recheck. Retreat if still below 4.0.
Hi Thank you for that, i was given it to take when below 4. It also came in a powder form which you mix with water. Setting at 6.0 is a good idea I never thought of that. Doctor told me to set a 5.0. Now thinking about driving HGV it needs to be above 5.0 so makes sense to set alarm higher. Thank you so muchIt might be worthwhile considering setting your alarm higher when you are driving.
If you set it to 6.0, for example, this gives you time to get to a convenient place to pull over and treat before you fall below the allowable level.
And when calculating your insulin dose for food, etc. you could set your target higher - again 6.0 - to give you more leeway.
I am not sure if you mean glucagon - I think this is the injection which comes in an orange box which is used when you are unconscious and unable to swallow anything. I have heard it ives you a thumping headache so not something you would want to take when you are heading low.