Which of the following signs or symptoms are indications for performing an anklebrachial index (ABI)? a. Irregular, superficial ulcer along the medial malleolus b. 4+ pitting edema to lower...

Which of the following signs or symptoms are indications for performing an anklebrachial index (ABI)?

a. Irregular, superficial ulcer along the medial malleolus

b. 4+ pitting edema to lower extremities

c. Intermittent claudication

d. Pulse deficit greater than 20 mm Hg