Which gland is not functioning efficiently in a patient with hyperglycemia?

Which gland is not functioning efficiently in a patient with hyperglycemia?

• A. Liver
• B. Pancreas
• C. Thyroid
• D. Adrenal

Answer: (B)

Blood glucose is tightly controlled mainly by the pancreas through insulin, which lowers blood sugar by helping cells take in glucose and by suppressing glucose production in the liver. If the pancreas isn’t functioning well in this role—either not producing enough insulin or the body’s cells aren’t responding to it—glucose stays elevated, producing hyperglycemia. The liver’s glucose output and storage are guided by insulin and glucagon, so it follows the pancreatic signal rather than acting independently as the primary problem. The thyroid mainly sets overall metabolic rate, which can influence glucose use but isn’t the direct regulator of blood sugar in the way pancreatic insulin is. The adrenal glands can raise glucose during stress via cortisol and catecholamines, but again, they’re modulators rather than the central control point. So the gland most implicated in a hyperglycemic state due to impaired regulation is the pancreas.

Blood glucose is tightly controlled mainly by the pancreas through insulin, which lowers blood sugar by helping cells take in glucose and by suppressing glucose production in the liver. If the pancreas isn’t functioning well in this role—either not producing enough insulin or the body’s cells aren’t responding to it—glucose stays elevated, producing hyperglycemia. The liver’s glucose output and storage are guided by insulin and glucagon, so it follows the pancreatic signal rather than acting independently as the primary problem. The thyroid mainly sets overall metabolic rate, which can influence glucose use but isn’t the direct regulator of blood sugar in the way pancreatic insulin is. The adrenal glands can raise glucose during stress via cortisol and catecholamines, but again, they’re modulators rather than the central control point. So the gland most implicated in a hyperglycemic state due to impaired regulation is the pancreas.