A nurse is monitoring a client with cirrhosis for signs of portal hypertension. Which finding is most indicative of this complication?

Choice A reason: Metformin reduces blood sugar primarily by inhibiting hepatic gluconeogenesis, decreasing liver glucose production. It also enhances insulin sensitivity in peripheral tissues, reducing hyperglycemia in type 2 diabetes without causing hypoglycemia, as it does not stimulate insulin secretion, making this the accurate mechanism.

Choice B reason: Metformin does not block carbohydrate absorption in the intestine. Drugs like alpha-glucosidase inhibitors (e.g., acarbose) slow carbohydrate breakdown, but metformin primarily acts on the liver to reduce gluconeogenesis and improve insulin sensitivity, not directly affecting intestinal absorption.

Choice C reason: Metformin does not stimulate insulin release from the pancreas. This is the mechanism of sulfonylureas, which enhance beta-cell insulin secretion. Metformin works by reducing hepatic glucose output and increasing insulin sensitivity, making this statement incorrect for its mechanism of action.

Choice D reason: Metformin decreases, not increases, insulin resistance. It enhances insulin sensitivity in muscle and liver cells, improving glucose uptake and utilization. Increasing insulin resistance would worsen type 2 diabetes, making this statement incorrect, as metformin’s goal is to counteract insulin resistance.

Choice A reason: Hepatitis, an inflammatory liver condition, is managed medically with antivirals or supportive care, not surgically with a Whipple procedure. The Whipple involves pancreatic, duodenal, and biliary resection, irrelevant to hepatitis, which primarily affects liver parenchyma, making this an incorrect indication for the procedure.

Choice B reason: The term "cancer" is too broad. The Whipple procedure is specific to pancreatic or periampullary cancers, not all cancers. Without specificity, this choice is inaccurate, as the procedure targets pancreatic head tumors, not generalized malignancies like lung or breast cancer.

Choice C reason: Bowel obstruction is typically managed with procedures like adhesiolysis or resection, not a Whipple procedure, which involves removing the pancreatic head, duodenum, and bile duct. Obstructions are unrelated to pancreatic pathology, making this an inappropriate indication for this complex surgical intervention.

Choice D reason: The Whipple procedure (pancreaticoduodenectomy) is primarily performed for pancreatic cancer, especially in the pancreatic head. It removes the tumor, part of the pancreas, duodenum, and bile duct to treat localized malignancy, aiming for curative resection, making this the correct indication for the surgery.