A severe and potentially lethal allergic reaction to a medication marked by hives,dyspnea,circulatory collapse,and severe bronchospasm is known as

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Allergic reactions range from mild signs such as urticaria (hives or raised skin patches)to severe cardiovascular and respiratory problems indicating anaphylaxis.Respiratory symptoms include bronchospasm,dyspnea (labored breathing),tachypnea (rapid breathing),respiratory obstruction,and laryngeal edema.Anaphylactic shock is a complete cardiovascular collapse,which occurs rapidly and may include cardiac and respiratory arrest.

A Severe and Potentially Lethal Allergic Reaction to a Medication