 [ Symptoms ] is there a test to tell if mono is gone  my son is 17 and has mono he was sick for a couple of week before it was determined that he had mono no it has been 4 weeks and he is feeling great is there a way to tell if he still has mono or can he go back to full daily activities [ Disease ] that will be up to his medical provider to decide while there are blood tests ebv panel and liver function tests that can determine the current status of this pesky viral infection a hands on examination may be necessary to know if he is now good to go since some daily activities may include contact or collision sports like football it is best to get the patient specific okay from his doctor or health care professional the fact that he is feeling great is the best news of course so the mono may have completely resolved by this four week mark