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    What are the signs of life-threatening food poisoning?

    By | Work + Money – Thu, Aug 18, 2011 5:01 PM EDT

    By Roshini Rajapaksa,MD

    Q: Every time I hear about a deadly E. coli outbreak, I wonder: How do I tell the difference between harmless food poisoning and the life-threatening kind?

    A: While a bout of food poisoning totally sucks, most of the time the vomiting, diarrhea, aches, and fever will go away on their own in a couple of days. But in rare situations, a more virulent pathogen-such as certain strains of E. coli bacteria that produce a poison called Shiga toxin-can lead to severe, life-threatening dehydration or kidney failure.

    If you have diarrhea along with a fever of 101 degrees or higher; if you feel very thirsty, dizzy, or light-headed; or if you have diarrhea that persists for more than three days, see a doctor. Head straight to the ER if you have a lot of blood in your stool or a pounding or skipping heart, or if you think you got sick from eating poisonous mushrooms, bad shellfish, or a contaminated canned item (toxins from these foods can have especially serious consequences).

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