What is a common symptom of an extreme anaphylactic reaction?

In an extreme anaphylactic reaction, pruritis, or intense itching, is a common symptom due to the release of histamines and other chemicals in the body. This release occurs during a severe allergic response, leading to a cascade of physiological reactions that can manifest in the skin. Pruritis is often associated with other symptoms such as hives (urticaria), flushing, and swelling. This response can be quite pronounced, contributing to the overall distress seen in individuals experiencing anaphylaxis.

The other options, while they may indicate various medical conditions or reactions, are not typically associated with the immediate symptoms of anaphylaxis. Dependent edema, for instance, usually indicates issues related to fluid management and does not directly relate to allergic reactions. Articular swelling is more linked to inflammatory responses in conditions like arthritis rather than anaphylactic shock. Stomatitis involves inflammation of the mucous membranes in the mouth and is not a characteristic symptom of anaphylaxis. Therefore, pruritis stands out as a direct result of the body's acute allergic response during anaphylaxis.