The lower-extremity Allen test.

@article{Haddock2009TheLA,
  title={The lower-extremity Allen test.},
  author={Nicholas T. Haddock and Evan Stuart Garfein and Pierre B. Saadeh and Jamie P. Levine},
  journal={Journal of reconstructive microsurgery},
  year={2009},
  volume={25 7},
  pages={399-403}
}
The Allen test is used to diagnose the relative contribution of the ulnar and radial arteries to each hand. We modified this test to investigate the relative vascular contributions to distal perfusion of the lower extremity. With the patient supine, a handheld Doppler is used to locate the first dorsal metatarsal artery. The posterior tibial artery (PT) and dorsalis pedis artery (DP) pulses are compressed. A persistent signal indicates collateral flow through the peroneal artery (PA… CONTINUE READING