it just never occurred to me to set my schedule to test once before breakfast, 2-3 hours after breakfast, once before lunch, 2-3 hours AFTER lunch, before dinner,
and 2-3 hours after dinner, etc.
Glucose levels can then be seen dropping or rising and she can adjust her insulin or drink some juice accordingly, BEFORE something severe happens to her. She might want to start always carrying 2 small 6-oz.