What are the possible side effects of amphetamine and dextroamphetamine (Adderall, Adderall XR)? Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
If your body detects EBV, it can develop a type of antibody called heterophile antibodies. If you have heterophile antibodies in your blood, then your monospot test is positive.. A positive monospot test accompanied by the symptoms of mono results in a diagnosis of infectious mononucleosis. However, monospot tests can be false-positive, about 10-15% of the time, particularly in early stages of the illness. You may also receive a negative monospot test even if you have mono.
It's because in rare cases the original virus can flare up and cause symptoms a second time). About 95% of adults have been infected with EBV and 50% of kids are infected before age 5. So you may very well have already had mono and not known it. If you do get the symptoms of mono â such as fever, sore throat, and tiredness â contact your doctor to find out whether you need an appointment. If so, your doctor will examine you and may also do a blood test for mono.