The measures to prevent children from swallowing the ag3 button battery/AG3 battery are as follows:
1. Strengthen the public's understanding of the hazards of button batteries entering the human body;
2. Call on the government to standardize the management of the button manufacturing industry, mark the relevant risks on the products and inform customers;
3. Parents should take good care of button batteries, and do not place toys and products containing button batteries within the reach of young children to prevent young children from stuffing them into their noses or swallowing them by mistake;
4. Parents should educate their children not to put foreign objects into the nasal cavity or swallow foreign objects by mistake;
5. Once the parents discover that the button battery has been swallowed by mistake, they should seek medical attention and take it out as soon as possible to avoid serious consequences.