Certified Diabetes Care and Education Specialist (CDCES) Practice Exam

What is the significance of timing the first dose of subcutaneous insulin in relation to IV insulin?

1. To prevent hypoglycemia

2. To allow an overlap considering the onset of action

3. To ensure the patient is fully transitioned

4. To adjust the insulin dosage

The correct answer is: To allow an overlap considering the onset of action

The timing of the first dose of subcutaneous insulin in relation to IV insulin is significant primarily because it allows for an overlap considering the onset of action. IV insulin provides immediate glucose control due to its rapid onset, while subcutaneous insulin has a delayed onset because it needs to be absorbed into the bloodstream at the injection site. Proper timing ensures that as the effects of the IV insulin begin to taper off, the subcutaneous insulin is already starting to take effect. This overlap is crucial to provide continuous glycemic control and to prevent potential hyperglycemia during the transition from IV to subcutaneous administration. In managing diabetes, particularly in a hospital setting, effective glycemic control is essential for patient safety. If the transition from IV insulin to subcutaneous insulin is not timed correctly, there could be a lapse in insulin coverage, potentially leading to an increase in blood glucose levels. Hence, recognizing the need for this overlap underscores the importance of timing in diabetes management.