title: Interference by monoclonal proteins in the o-phthalaldehyde method for blood urea nitrogen.
mesh_terms: D000447:Aldehydes; D000911:Antibodies, Monoclonal / Q000032:analysis*; D001806:Blood Urea Nitrogen; D003404:Creatinine / Q000097:blood; D005189:False Positive Reactions; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D010266:Paraproteins / Q000032:analysis; D011446:Prospective Studies; D009764:o-Phthalaldehyde
chemical_list: D000447:Aldehydes; D000911:Antibodies, Monoclonal; D007136:Immunoglobulins; D010266:Paraproteins; D009764:o-Phthalaldehyde; D003404:Creatinine