I have my BASAL down prety good. I set it using the following method.
First, had to start with a good FBS level, IN RANGE. Then tested often heading toward lunch time no food or exercise. If my BS level stayed about the same then I knew it was good, if my BS was heading UP, my BASAL was low, and if my BS level was diving, my BASAL was high. Adjustments were made only 1-2units at a time. When I was first moved from NPH to Lantus for my BASAL, it was an even unit for unit move, however it was way too high and still on the spike and dive roller-coaster. More recently I was told to change the split so I take less in the AM for a lower BASAL rate during the night when Lantus is more active. , I started out 50% AM and 50% PM or half in the morning and half at night for a more even BASAL. I take the same total, jsut 2 units more at night for my daytime BASAL rate.
BOLUS is best figured AFTER a good stable BASAL rate is found. I was started with a 1:15, insulin:carb ratio but after getting my BASAL rate set properly I foudn the 1:15 not enough insulin. I found my BASAL rate to be better at 1:10 or 1 unit of humalog per 10 grams of carbs. That brings me right back near where I was before the meal, not much above or below my starting point. You can not really tell this without having a STABLE BASAL to begin with.
BASICLY what I did was use the same proceedure a pumper would do to get properly set up with an insulin pump, only done with shots and it’s GREAT to feel normal again for the first time in nearly 3 decades. I no longer need to eat in 4 hrs or take a dive or panic for a meal or take glucose tabs to tie me over.
DAWN effect, if you go low during the night, your liver will dump glucose as your bodies self defense against going hypo and cause HIGH FASTING blood sugars. That is WHY I am on an uneven AM/PM split instead of half and half.
LAUNTUS is NOT completely level, it does not peak as much as say N/NPH though.
(&( GOMER sez, forget the 24hr avdertising hype…