Just got finished with an EM rotation at my city's largest and busiest ED. Had a dude who was transported via ambulance from his PCP's office with a chief complaint of high platelets. Dude was 34, healthy, no past medical history, taking no meds, felt great. Apparently a routine CBC came back with a platelet count of 620K, and the PCP had never seen one that high so he had the patient rushed over to the ER for further evaluation. The best part was when my attending had to call the PCP and explain to him how ridiculous the situation was.