Another one from Dr. N. [This is the first one. And its hilarious!]
After examining a case of suspected infectious mononucleosis, Dr. N and the student on call were discussing the diagnosis and management.
Dr.N: "The heterophile test might not always be positive in the early course of the disease.. So, what other test can you use for diagnosis?"
Student: "Give the patient amoxicillin. And watch if he develops a rash.."
(This one cracked me up. Believe me, it might sound like me, but I wasn't the student here!)