title: Error in anti-DNA antibody radioimmunoassay after gallium scanning.
abstract: Significant interference with the accurate measurement of anti-DNA antibodies occurs after gallium-67 scanning. The observed effect is dependent on the radioimmunoassay used. False-negative results are observed with a modified Farr assay whereas false-positive results are noted in the millipore filter assay. These spurious values are the result of persistent radioactivity in the patients' sera after administration of 67Ga citrate.
mesh_terms: D000974:Antibodies, Antinuclear / Q000032:analysis*; D004247:DNA / Q000276:immunology*; D005710:Gallium Radioisotopes / Q000009:adverse effects*; D006801:Humans; D011863:Radioimmunoassay / Q000379:methods
chemical_list: D000974:Antibodies, Antinuclear; D005710:Gallium Radioisotopes; D004247:DNA