A 72-year-old male patient is currently hospitalized in the medical step-down unit for management of a severe cerebrovascular accident. He requires continuous enteral nutrition via a nasogastric tube due to profound dysphagia. His daily glycemic control is maintained using scheduled subcutaneous NPH insulin every 12 hours and regular insulin every 6 hours. An unexpected complication arises, requiring immediate transfer for an emergent procedure. Consequently, his continuous enteral feeding is abruptly halted. Arrange the following steps for metabolic monitoring and treatment evaluation in the most appropriate chronological sequence to ensure patient safety.
- 1Initiate an intravenous infusion of 10% dextrose (D10W) at the prior enteral feeding rate.
- 2Hold all upcoming scheduled doses of NPH and nutritional regular insulin.
- 3Monitor point-of-care capillary blood glucose every 1 to 2 hours.
- 4Administer short-acting insulin solely as a correctional dose for hyperglycemia.
- 5Restart the baseline scheduled insulin regimen after enteral nutrition is re-established at the goal rate.
Answer
The correct chronological sequence is to first initiate a 10% dextrose infusion, then hold scheduled insulin, monitor blood glucose every 1 to 2 hours, treat any resulting hyperglycemia strictly with correctional insulin, and finally resume the original regimen once feeding is successfully re-established.
The correct sequence prioritizes the immediate physiological threat of hypoglycemia. Because intermediate-acting NPH insulin has already been administered and will continue to act for up to 18 hours, abruptly stopping the patient's continuous carbohydrate source (enteral feeds) will lead to profound hypoglycemia. Therefore, the immediate first step is to replace the lost carbohydrates with an intravenous dextrose infusion matching the previous feeding rate. Once the immediate threat is neutralized, subsequent scheduled insulin doses should be held to prevent adding more insulin to a fasting patient. Close monitoring of blood glucose every 1 to 2 hours is then required to evaluate the effectiveness of the intervention. During this fasting period, any hyperglycemia should be managed solely with short-acting correctional insulin. Finally, the baseline regimen can only be safely restarted after the procedure when the continuous enteral feeding is successfully re-established.
Step-by-Step Solution
Key Concept
Metabolic monitoring and sequence of intervention during the abrupt interruption of continuous enteral nutrition in patients receiving intermediate or long-acting insulin.
Estimated Time:2m 0s