You are on the scene in the bad part of town for an unresponsive 18-year-old type 1 diabetic patient. his mother states that he is very noncompliant with his diabetes management and goes unresponsive often due to low blood sugar. after performing the primary assessment, you believe that this is the most likely cause of his unresponsiveness. however, after taking a capillary glucose reading you are surprised to see that the patient's sugar level is normal. how will you now determine the field impression?