Sometimes vomiting will occur after a severe reaction. This may be from the person's own glucagon output, or from the glucagon that was injected. If the family is concerned about the ketones, if the blood sugar did not rise, or if the vomiting continues, the diabetes care provider should be called. For some people, blood sugars tend to be high after exercise. This is because of the normal response of releasing adrenaline during exercise.
Adrenaline causes sugar to come out of muscle and liver and raises the blood sugar.
Prevention involves lowering the insulin dose, especially the long-acting insulin, after heavy exercise even though the blood sugar may be high. As the exercise is essential for the heart and cardiovascular system, it is important to always be thinking about how to best prevent exercise and post-exercise lows. These hormones may also result in ketone output in the urine. The person may not have any symptoms during the night, or may complain of night sweats or a morning headache. Table 2 summarizes when to consider rebounding.