DONTTOUCHIT, I wrote a long letter to my wife's pain doctor who wanted this test done after treating my wife and diagnosing her with full body RSD for 3 years and why we think this test is not the right test for her. I presented other doctor's opinion, those doctors who are experts in RSD, in why FCE tests can be misleading to those with RSD. The doctor changed her mind and wrote a letter that she is not able to work (to be submitted to SS). Someone earlier posted that their FCE test was around an 1.5 hours. The test that was going to be administered to my wife was around 4 hours. This test is all over the place it seems.