Final answer:
In a diabetic emergency with altered mental status, the EMS Provider should administer a sugar concentrate if safe to do so and not defer all treatment, whereas insulin should not be given orally and unconscious patients should not be given oral substances due to aspiration risks.
Step-by-step explanation:
In the case of a diabetic emergency where a patient with a history of diabetes has an altered mental status, the EMS Provider should administer a sugar concentrate, if there is no danger that the patient will aspirate. This is critical since an altered mental status can be due to hypoglycemia (low blood sugar), and rapid administration of glucose can be life-saving. On the other hand, encouraging the patient to take an insulin solution orally is not appropriate, as insulin is not absorbed from the gut and must be injected. Additionally, it would lower blood sugar levels further, potentially worsening the condition. Administering sugar to an unconscious patient is dangerous due to the risk of aspiration, and thus should be avoided. While rapid transport to the hospital is essential, an EMS Provider should not defer all treatment, as immediate action might be necessary to stabilize the patient's condition.