title: When is elevated testosterone not testosterone? When it is an immunoassay interfering antibody.
abstract: A discrepancy between clinical findings and a markedly elevated testosterone (T) level stimulated search to explain this inconsistency. The cause of the falsely elevated T level was determined to be heterophile antibodies from a polyclonal gammopathy in a subject with acute myelogenous leukemia.
authors.affiliation: Department of Obstetrics and Gynecology, Magee-Women's Hospital, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
authors.forename: Devon
authors.initials: D
authors.lastname: Ramaeker
authors.forename: John
authors.initials: J
authors.lastname: Brannian
authors.forename: Kristi
authors.initials: K
authors.lastname: Egland
authors.forename: Kelly
authors.initials: K
authors.lastname: McCaul
authors.forename: Keith
authors.initials: K
authors.lastname: Hansen
mesh_terms: D000328:Adult; D016477:Artifacts; D003951:Diagnostic Errors / Q000517:prevention & control*; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D007118:Immunoassay / Q000379:methods*; D007246:Infertility / Q000097:blood* / Q000175:diagnosis*; D013739:Testosterone / Q000097:blood*
chemical_list: D013739:Testosterone