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)
Jacobson KW, Branch LB, Nelson HS. Laboratory Tests in Chronic Urticaria. JAMA. 1980;243(16):1644–1646. doi:10.1001/jama.1980.03300420028020
* * SCHEDULED MAINTENANCE * *
The JAMA Network Sites will be conducting routine maintenance from 10/20/2017 through 10/21/2017. During this window access to content and authentication may be intermittently available. The JAMA Store will be completely unavailable during the maintenance window.