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Anaphylaxis

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Definition & SymptomsCauses & Risk Factors Tests & Diagnostics Treatments Complications Prevention

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Definition

Anaphylaxis is a life-threatening type of allergic reaction.

Symptoms

Symptoms develop rapidly, often within seconds or minutes. They may include the following:

Abdominal pain or cramping
Abnormal (high-pitched) breathing sounds
Anxiety
Confusion
Cough
Diarrhea
Difficulty breathing
Fainting, light-headedness, dizziness
Hives, itchiness
Nasal congestion
Nausea, vomiting
Sensation of feeling the heart beat (palpitations)
Skin redness
Slurred speech
Wheezing

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Vomiting
Vomiting is the forceful discharge of stomach contents through the mouth. More »
Gale Encyclopedia of Alternative Medicine

Diarrhea
Diarrhea is loose, watery, and frequent stool. Diarrhea is considered chronic (long-term) when you have had loose or frequent stools for more than 4 weeks. More »
ADAM

Hives
Hives are raised, often itchy, red welts on the surface of the skin. They are usually an allergic reaction to food or medicine. More »
ADAM

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Health Tip: Know the Warning Signs of Anaphylaxis

Jun 10, 2010 - HealthDay

Just-Approved Defibrillators Limit Unnecessary Shocks

Mar 29, 2011 - HealthDay

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