The nurse is assessing a patient complaining of a fever, chills, headache, and malaise with firm and tender cervical lymph nodes. What laboratory test is used to definitively confirm the diagnosis of infectious mononucleosis?
•Mononucleosis is usually linked to the Epstein-Barr virus (EBV). It is rarely caused by other viruses such as cytomegalovirus (CMV). It causes severe fatigue and malaise. Swollen tonsils and lymph nodes, stomach ache, and flu-like symptoms are generally present.
•Epstein-Barr virus antibody test is used to confirm the diagnosis if the Monospot test is negative and the patient has symptoms of mononucleosis.
•The Monospot test, or heterophile antibody test, is a quick test that may be used to screen for mononucleosis, but it often produces false negatives.
•Leukocytosis and lymphocytosis are indicative of infection, but not specific to mononucleosis.