A 71-yeаr-оld femаle with а histоry оf HTN, uncontrolled DM II, COPD, PVD, and CKD presents to the ED with complaints of sudden right lower extremity pain and numbness. Upon examination his right leg is cool to the touch, discolored with a mottled appearance, and dorsalis pedis pulses are absent. Physical exam findings are pictured below. ischemic limb.png Which of the following is the MOST appropriate next step?