Revista alergia Mexico (Tecamachalco, Puebla, Mexico : 1993)
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The skin prick test is used to diagnose the allergic sensitization. Its results depend upon several factors, such as the lancet type. In Cuba, the most frequently used are: ALK lancet and blood lancet. ⋯ The ALK lancet showed more precision, sensitivity and specificity and it was preferred by the patients.
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H. pylori is considered one of the major etiological agents for chronic idiopathic urticaria; it infects 15 percent of the world's population and induces an inflammatory process in the gastric mucosa. In some cases it is related to chronic urticaria, even in the absence of digestive symptoms. ⋯ We found a correlation between the disappearance of the symptoms and a negative urea breath test in 45 percent of the patients who were studied. We must consider the possibility of H. pylori infection, which can be present even without gastric symptoms.