Place the victim on his back. Open the victim's airway by placing one hand on the forehead and one hand under the chin and tilting the head back. Check for any obstructions in the mouth or throat. Look, listen, and feel for breathing. Check the carotid pulse and look, listen, and feel for breathing.
Chemical splashes on the skin require immediate attention.
Remove contaminated clothing. Wash area with water thoroughly for 15 minutes. Seek medical attention. Choking victims cannot speak, breathe, or cough forcefully. Get behind the victim and make a fist with one hand.