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| | NBC10.com - Health Encyclopedia - Heart Attack First Aid |
 | | Most often, this occurs in an artery that has been narrowed from changes related to hardening of the arteries (atherosclerosis). |
 | | Other causes for cardiac arrest may include drowning, suffocation, electrical shock, severe allergic reaction (anaphylaxis), drug overdose, and trauma. |
 | | This may occur for a number of reasons including drowning, suffocation, electrical shock, illness, poisoning, and inhaling or swallowing a foreign object (foreign body aspiration). |
| www.nbc10.com /encyclopedia/6859298/detail.html (981 words) |
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