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Choking occurs when food or other small objects become lodged in a child’s throat or airway (trachea), preventing oxygen from getting to the lungs and brain. From the time children are born, choking hazards are present. Children are especially at risk once they become mobile and begin crawling and eating solid foods. Children under the age of 5 years are at the greatest risk of choking. About two-thirds of all choking victims are children under the age of 1, according to the American Academy of Pediatrics (AAP).
Normally, air and food that enter a child’s throat share the same opening before they are diverted into two separate channels. Air travels down the trachea (windpipe) and into the lungs. Meanwhile, food and liquids travel down the esophagus and into the stomach. A flap of cartilage called the epiglottis covers the trachea every time a person swallows, which prevents food from accidentally going into the trachea.
In some cases, the epiglottis does not close the way it is supposed to during swallowing and allows food or other swallowed items (such as small toys or other objects) to slip into the trachea. The body usually will react to this by coughing and forcing the item back up. However, if the item becomes lodged in the trachea, choking may result.
Choking should always be viewed as a medical emergency. When a child’s airway becomes blocked, permanent damage and even death from asphyxiation can result. Brain damage can begin just four minutes after the organ has been deprived of oxygen. Children’s small upper airways put them at even greater risk of serious health damage as a result of choking.
In 2000, 160 children age 14 or younger in the United States died as a result of inhaled or ingested objects, according to the Centers for Disease Control and Prevention (CDC). In 2001, the last year for which the CDC released data, more than 17,000 children age 14 or younger were treated in hospital emergency rooms for choking-related problems, according to the CDC.
Food is among the objects most likely to cause choking in a child, and about 60 percent of choking-related emergency room visits by children 14 years and younger in 2001 involved food, according to the CDC. Children who do not thoroughly chew their food may find that it becomes lodged in their throats. In addition, foods that might present little risk to adults – such as peanuts – pose a greater threat to children because of a child’s smaller airways and less developed molars, the teeth at the back of the mouth used for grinding. Round, firm foods present the greatest choking danger.
Nonfood items also can present choking hazards to children. Latex balloons (including broken balloons and parts of a balloon) are particularly notorious for triggering choking incidents in children. Other items that can pose a choking risk to children include:
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Coins
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Marbles
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Pen or marker caps
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Small balls
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Small batteries
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Syringes
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Toys with small parts, or parts that can be compressed
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Medications or recreational drugs in pill form (small children)
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