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Rattlesnakes are the most widely known of the pit
vipers (family Viperidae). They are found throughout the United States and
parts of Canada and account for most poisonous (venomous) snakebites in North
America. They leave one, two, or three puncture marks on the skin, but you
won't always see any marks.
Rattlesnakes can be up to
8 ft (2.5 m) long and
Symptoms of a rattlesnake bite usually appear from minutes to
hours after a bite and can include:
If you think you have been bitten by a rattlesnake,
call 911 or other emergency services immediately.
Current as of:
June 4, 2014
William H. Blahd, Jr., MD, FACEP - Emergency Medicine & Sean P. Bush, MD, FACEP - Emergency Medicine, Envenomation Specialist
How this information was developed to help you make better health decisions.
To learn more, visit Healthwise.org
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