Associate Degree in Nursing (ADN) Level 3 Exam 2025 – 400 Free Practice Questions to Pass the Exam

Insulin is the primary hormone responsible for regulating blood sugar levels in the body. It is produced by the beta cells of the pancreas and plays a crucial role in glucose metabolism. When blood glucose levels rise, such as after eating a meal, insulin is released into the bloodstream. Its primary function is to facilitate the uptake of glucose by the body’s cells, allowing them to use glucose for energy. Additionally, insulin stimulates the liver to store glucose as glycogen for future energy use and helps inhibit the production of glucose by the liver.

Having adequate insulin levels is essential for maintaining healthy blood sugar levels. In conditions such as diabetes, where insulin secretion is impaired or the body's cells do not respond effectively to insulin, blood sugar levels can become dangerously high, leading to various health complications. Therefore, understanding the role of insulin in blood sugar regulation is fundamental in nursing and healthcare practice.