How should you manage perioperative glucose control in diabetic patients?

How should you manage perioperative glucose control in diabetic patients?

• A. Target 140–180 mg/dL intraoperatively; use insulin infusions for hyperglycemia and avoid hypoglycemia with ongoing monitoring.
• B. Maintain glucose strictly at 80–110 mg/dL intraoperatively.
• C. Aim for 100–140 mg/dL intraoperatively.
• D. Target 110–150 mg/dL intraoperatively.

Answer: (D)

Managing perioperative glucose in diabetic patients is about balancing the risks of hyperglycemia with the dangers of hypoglycemia under anesthesia. The best approach targets a moderate intraoperative range, around 110–150 mg/dL. This keeps glucose elevated enough to avoid the neuroendocrine and infectious risks of hyperglycemia, but not so tight that you provoke hypoglycemia, which anesthesia can mask and treat only by careful monitoring and rapid correction. In practice, you use an insulin infusion to correct rising glucose toward that target, with ongoing frequent glucose checks to prevent swings. If glucose trends toward the high end, you adjust the infusion; if it trends too low, you reduce or pause insulin and, if needed, provide a small dextrose-containing fluid to avert hypoglycemia. Continuous monitoring and timely adjustments are essential because the perioperative period involves stress responses, variable insulin sensitivity, and changes in fluid and electrolyte balance. The other targets are either too aggressive or too permissive: aiming for very strict control increases the risk of hypoglycemia in a patient who cannot report symptoms, and letting glucose run too high in the OR is associated with poorer outcomes and more infections. The moderate range of 110–150 mg/dL reflects a practical balance commonly favored to optimize safety and outcomes during surgery.

Managing perioperative glucose in diabetic patients is about balancing the risks of hyperglycemia with the dangers of hypoglycemia under anesthesia. The best approach targets a moderate intraoperative range, around 110–150 mg/dL. This keeps glucose elevated enough to avoid the neuroendocrine and infectious risks of hyperglycemia, but not so tight that you provoke hypoglycemia, which anesthesia can mask and treat only by careful monitoring and rapid correction.

In practice, you use an insulin infusion to correct rising glucose toward that target, with ongoing frequent glucose checks to prevent swings. If glucose trends toward the high end, you adjust the infusion; if it trends too low, you reduce or pause insulin and, if needed, provide a small dextrose-containing fluid to avert hypoglycemia. Continuous monitoring and timely adjustments are essential because the perioperative period involves stress responses, variable insulin sensitivity, and changes in fluid and electrolyte balance.

The other targets are either too aggressive or too permissive: aiming for very strict control increases the risk of hypoglycemia in a patient who cannot report symptoms, and letting glucose run too high in the OR is associated with poorer outcomes and more infections. The moderate range of 110–150 mg/dL reflects a practical balance commonly favored to optimize safety and outcomes during surgery.