Insulin is used to treat types 1 and 2 diabetes mellitus when diet, weight control therapy, and oral hypoglycemic agents have failed to maintain satisfactory blood glucose levels.
‘’insulin: hormone secreted into the blood by the islets of Langerhans of the pancreas; promotes the storage of glucose, among other functions.”
Insulin injection sites
• The main areas for injections are the abdomen, arms (posterior surface), thighs (anterior surface), and hips.
• Insulin injected into the abdomen may absorb more evenly and rapidly than at other sites.
• Systematic rotation within one anatomical area is recommended to prevent lipodystrophy; client should be instructed not to use the same site more than once in a 2- to 3-week period.
• Injections should be 1½ inches apart within the anatomical area.
• Heat, massage, and exercise of the injected area can increase absorption rates and may result in hypoglycemia.
Why Insulin Needed?
Patients with type 1 diabetes must take insulin daily because of their absolute insulin deficiency. Patients with type 2 diabetes may require insulin to control blood glucose levels unresponsive to diet and oral antidiabetic agents, or during periods of acute stress. Patients with other types of diabetes commonly require daily insulin therapy to achieve blood glucose control.