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Article
January 3, 1959

ANALYSIS OF THE PRECIPITATION TEST FOR SYSTEMIC LUPUS ERYTHEMATOSUS

Author Affiliations

Los Angeles

From the Department of Medicine, University of California School of Medicine, and the Wadsworth Hospital, Veterans Administration Center.

JAMA. 1959;169(1):30-33. doi:10.1001/jama.1959.73000180001009
Abstract

Within recent months, there was reported in The Journal1 the results of a simple serum precipitation test which was frequently found to be positive in patients with systemic lupus erythematosus and rarely reactive in most other conditions. The first details of this test were verbally presented in June, 1957,2 after which the test was performed on a number of the patients from the wards and clinics of local medical centers in the Los Angeles area. Equivocal or contradictory results were often found in these patients, and, hence, the test as a routine procedure was discontinued in the fall of 1957. After the publication by Jones and Thompson1 of their results with this procedure, it was carefully and systematically reevaluated in most of the original patients as well as in many new ones, including a number of unselected hospitalized patients who had a wide range of medical diseases,

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