Kelly, Either way is an acceptable method for obtaining Doppler waveforms. However, in case there is a question about the reimbursement portion of this procedure in our audience, obtaining isolated waveforms using a duplex ultrasound machine during the course of a physiologic exam does not constitute performance of an Extremity Duplex Arterial Exam. So the 93922, 93923 and 93924 codes are still applicable, not 93925 or 93926. Gene Doverspike, RVT To unsubscribe or search other topics on UVM Flownet link to: http://list.uvm.edu/archives/uvmflownet.html