The nurse is preparing to administer an intravenous infusion containing regular insulin for a patient diagnosed with diabetic ketoacidosis. Which nursing intervention added to the patient's plan of care has the highest priority?
1. Check urine for ketone bodies every shift.
2. Check blood glucose levels every 2 hours.
3. Monitor serum calcium levels closely.
4. Adjust infusion rate according to glucose readings.
Answer: 4
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