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April 25, 1980

Laboratory Tests in Chronic Urticaria

Author Affiliations

From the Allergy-Immunology Service, Fitzsimons Army Medical Center, Denver. Dr Jacobson is now in private practice in Eugene, Ore. Lt Col Branch is now with the Allergy-Immunology Service, Letterman Army Medical Center, Presidio of San Francisco.

JAMA. 1980;243(16):1644-1646. doi:10.1001/jama.1980.03300420028020

One hundred twenty-five patients with chronic urticaria were evaluated with 11 commonly recommended laboratory and radiologic procedures. Abnormal studies were obtained in 26 (20.8%) of these patients, but the majority of these abnormalities were evident from the initial history and physical examination. These results indicate that, with the possible exception of sinus roentgenograms, these laboratory studies are not likely to be helpful in the evaluation of chronic urticaria unless there are suggestive findings in the history and physical examination. The yield and equivalent charge of diagnosis for each procedure used was also analyzed.

(JAMA 243:1644-1646, 1980)