Final answer:
The issue with Andrew's blood sugar levels could be due to a dysfunction in the pancreas. In Type 1 diabetes, the pancreas does not secrete enough insulin, leading to high levels of glucose in the blood.
Step-by-step explanation:
The issue with Andrew's blood sugar levels could be due to a dysfunction in the pancreas, which is a gland in the endocrine system. The pancreas secretes insulin, a hormone that regulates blood glucose levels. In Type 1 diabetes, the pancreas does not secrete enough insulin, leading to high levels of glucose in the blood.