A common emergency treatment for insulin reactions includes which of the following?

Immediate intravenous sugar administration is the correct approach for treating insulin reactions, commonly associated with hypoglycemia (low blood sugar levels). In such cases, the body requires a rapid increase in glucose levels to counteract the symptoms of an insulin reaction, which can include confusion, dizziness, and loss of consciousness. Administering sugar directly into the bloodstream ensures that it is quickly available for the body's immediate energy requirements.

Each of the other options does not address the urgent need to raise blood sugar levels safely and effectively. Hypertonic saline solutions are not appropriate for insulin reactions as they are typically used in cases of hyponatremia (low sodium levels) and do not serve to directly raise blood glucose. Antipsychotic medications are unrelated to the treatment of insulin reactions and are used to manage psychiatric disorders rather than metabolic emergencies. Similarly, offering food with high salt content is not useful in this context, as salt does not have an effect on blood sugar levels and is not a source of glucose needed during an insulin reaction.