You test every 2 to 3 hours for the 12 hours between shots (or the best you can do). A +2 or +3 is nice to see when the insulin starts working, a +5/6 helps you see when the insulin might take her lowest, +7/8 may help you see when she starts headed up as does a test around +10. You can give small snacks during the day rewarding her every time you poke.