An Adolescent Patient Has Fever, Pharyngitis, and Cervical Lymphadenopathy and Has

An adolescent patient has fever, pharyngitis, and cervical lymphadenopathy and has a negative group A beta-hemolytic throat culture. A complete blood count shows absolute lymphocytosis, but a heterophil antibody test is negative for Epstein-Barr virus (EBV) . What will the provider tell the patient about the likelihood of infectious mononucleosis (IM) ?

A) It will be necessary to repeat the heterophil antibody test in a few weeks.
B) Liver function tests will help to confirm a diagnosis of EBV-IM.
C) The likelihood of EBV infectious mononucleosis is still high.
D) This IM is most likely caused by a virus other than Epstein-Barr virus.