Which of the following metabolic disorders cause post-prandial hypoglycemia?
**Core Concept**
Post-prandial hypoglycemia refers to abnormally low blood glucose levels after a meal. It is a condition where the body's ability to regulate blood glucose is impaired, leading to excessive glucose utilization or inadequate glucose production.
**Why the Correct Answer is Right**
The correct answer is **C. Surreptitious use of insulin or oral hypoglycemic agents**. This occurs when individuals with diabetes intentionally or unintentionally administer excessive amounts of insulin or oral hypoglycemic agents, leading to an imbalance between glucose production and utilization. The pancreas, which normally compensates for meals by releasing insulin, is overwhelmed by the administered insulin, causing a rapid drop in blood glucose levels.
**Why Each Wrong Option is Incorrect**
* **Option A:** **Insulinoma** is a rare tumor of the pancreas that secretes excessive amounts of insulin, causing hypoglycemia. However, this condition typically presents with fasting hypoglycemia rather than post-prandial hypoglycemia.
* **Option B:** **Hypopituitarism** is a condition characterized by inadequate production of hormones by the pituitary gland, including ACTH, TSH, and GH. While it can lead to hypoglycemia, it is not typically associated with post-prandial hypoglycemia.
* **Option D:** **Insulin resistance** is a condition where the body's cells become less responsive to insulin, leading to increased glucose levels in the blood. This condition is typically associated with hyperglycemia rather than hypoglycemia.
**Clinical Pearl / High-Yield Fact**
When evaluating a patient with post-prandial hypoglycemia, it is essential to consider the possibility of surreptitious use of insulin or oral hypoglycemic agents, which can be a deliberate or accidental overdose.
**Correct Answer:** C. Surreptitious use of insulin or oral hypoglycemic agents.