What is anaphylactic shock?

RioBR

It is when an allergic response triggers a quick release from mast cells of large quantities of immunological mediators (histamines, prostaglandins, leukotrienes) leading to systemic vasodilation (associated with a sudden drop in blood pressure) and edema of bronchial mucosa (resulting in bronchoconstriction and difficulty breathing). http://en.wikipedia.org/wiki/Anaphylactic_shock Feb 11 08, 12:18 PM

Baloo55th

Many people at risk from it know they are and avoid foods that can set it off. However, a food can be met for the first time. Also, stings can trigger it. Very often the first sting is just painful, but the second at a later date can cause shock. The number of people at risk isn't high, but the risk is very high for them. When someone is known to be at risk, they may carry a device of the EpiPen (trademark) type. These inject adrenaline into the muscles and prevent the worsening of the breathing. If you suspect someone is starting to suffer from anaphylactic shock ask if they've got one of these, and assist them to use it. Whether or not, summon an ambulanceat at once and TELL CONTROL that you have a suspected case of anaphylactic shock. If you do assist the patient with the EpiPen or similar device, remember it must go into muscle not into a vein. Don't waste time looking for the thing - if they don't or can't tell you, just get the ambulance. http://en.wikipedia.org/wiki/EpiPen Source: Caring for "the worst [young] asthmatic on Merseyside", a brittle asthmatic who also suffered from severe nut allergy. The quotes surround words from the children's hospital staff during a review meeting I had with them. Feb 11 08, 1:11 PM