What are the three types of diabetes and their defining characteristics?

What are the three types of diabetes and their defining characteristics?

• A. Type 1: juvenile, insulin-dependent, little or no insulin produced; Type 2: insulin resistant, body produces insulin but doesn't know how to use it; Type 3: gestational diabetes during pregnancy.
• B. Type 1: adult-onset, insulin-dependent; Type 2: insulin dependent; Type 3: gestational diabetes.
• C. Type 1: gestational diabetes; Type 2: obesity-related diabetes; Type 3: juvenile diabetes.
• D. Type 1: juvenile, insulin-dependent; Type 2: gestational diabetes; Type 3: obesity-related diabetes.

Answer: (B)

Understanding diabetes types comes from how insulin is produced and used in the body. Type 1 is an autoimmune process that destroys insulin-producing cells, so the body makes little or no insulin and people usually need insulin therapy. Type 2 starts with insulin resistance—cells don’t respond well to insulin—and often with insufficient insulin production to meet demand; it’s commonly seen in adults and is frequently linked to obesity, with management that may begin with lifestyle changes and oral medications and may progress to insulin. Gestational diabetes is a distinct form that appears during pregnancy due to hormones that raise insulin resistance, and it typically resolves after delivery although it raises future diabetes risk. The description that fits these concepts is the one that says Type 1 is juvenile and insulin-dependent with little or no insulin produced, Type 2 is insulin resistant with continued insulin production, and Type 3 is gestational diabetes during pregnancy. The other options mix up onset age, insulin dependence, or the pregnancy-associated nature of gestational diabetes.

Understanding diabetes types comes from how insulin is produced and used in the body. Type 1 is an autoimmune process that destroys insulin-producing cells, so the body makes little or no insulin and people usually need insulin therapy. Type 2 starts with insulin resistance—cells don’t respond well to insulin—and often with insufficient insulin production to meet demand; it’s commonly seen in adults and is frequently linked to obesity, with management that may begin with lifestyle changes and oral medications and may progress to insulin. Gestational diabetes is a distinct form that appears during pregnancy due to hormones that raise insulin resistance, and it typically resolves after delivery although it raises future diabetes risk.

The description that fits these concepts is the one that says Type 1 is juvenile and insulin-dependent with little or no insulin produced, Type 2 is insulin resistant with continued insulin production, and Type 3 is gestational diabetes during pregnancy. The other options mix up onset age, insulin dependence, or the pregnancy-associated nature of gestational diabetes.