mrcem2-0539

A 21 year old female is brought to the emergency department by her boyfriend as he is concerned the patient has become drowsy after intermittent vomiting throughout the day. The boyfriend informs you that the patient is a type 1 diabetic. After evaluation, the patient is diagnosed with diabetic ketoacidosis and started on fluids and an insulin infusion. Due to a lack of available beds, the patient is transferred to the A&E observation ward. Several hours later, you are asked about discontinuing the insulin infusion. What criteria must be met before stopping the insulin infusion?