A child may be choking and need help right away if he or she:
• is unable to breathe
• is gasping or wheezing
• is unable to talk, cry, or make noise
• turns blue
• grabs at his or her throat or waves arms
• appears panicked
• becomes limp or unconscious
In those cases, immediately start abdominal thrusts (also known as the Heimlich maneuver), the standard rescue procedure for choking, if you've been trained to do it properly.