Here is a link to the PDF of The FAST D protocol: a simple method to rule out traumatic vascular injuries of the lower extremities from
Additional Resources:
(1) Noninvasive Physiologic Vascular Studies: A Guide to Diagnosing
Peripheral Arterial Disease1 [PubMed Abstract] [Full Text HTML] [Full Text PDF]. Radiographics. 2017 Jan-Feb;37(1):346-357. doi:10.1148/rg.2017160044. Epub 2016 Sep 30