Final answer:
An endocrinologist will adjust the basal insulin dosage to manage a diabetic patient's blood glucose levels between meals and overnight, ensuring stable levels during fasting periods.
Step-by-step explanation:
The type of insulin dosage an endocrinologist would adjust to better cover a diabetic patient's needs between meals and overnight is basal insulin. Basal insulin is designed to keep blood glucose levels stable during fasting periods and in the absence of meals. Meal-time insulin, on the other hand, is adjusted to cover the surges in blood glucose levels that occur as a result of food intake. Insulin injections crucially regulate blood glucose by facilitating its uptake by cells, which is especially important for people with type 1 diabetes who must monitor their blood sugar regularly and administer insulin to maintain normal levels.