It does not matter. No ER docs are worth the money they make. They also use high dollar test as will like nobody else. Example: Just today we get called to the ER because of a patient with carpal tunnel. The ER doc ordered $5000.00 worth of tests, actually got an MRI, and still did not have the diagnosis. I am a 4th year medical student and was the first from the team to see the patient. I did not look at any of the labs or radiology reports before I went and saw the patient. The patient told me that he works on the computer and does manual labor. He has pain and tingling in his hand for the last few weeks. The first thing I did was the Tinel percussion test and the Phalen wrist-flexion test. Both were positive. I said you need some NSAIDS, a splint, and go easier on you wrist. I came out of the room and was writing my notes and the ER doc came up to me with the MRI results and said "The radiologist is not sure what the problem is, I think we should get a nerve conduction study". Sure we both would have came to the correct diagnosis. The old fasion way: 5 minutes and $50.00. The ER docs way: 12 hours (not including the nerve conduction study) and about $7500.00 that the patient did not have.