A 40 y/o male is having pain in his left lower leg. He doesn…

A 40 y/o male is having pain in his left lower leg. He doesn’t recall injuring the leg and describes the pain as a continuous ache that began about an hour ago. You don’t detect a pulse in the left foot and the area is cool to touch. The right leg has a weak pulse. You should

A 40 year old male is complaining of pain in his right arm….

A 40 year old male is complaining of pain in his right arm.  Upon examination, you find a cool pale extremity with no radial pulse.  Pulses are present in other extremities, and the patient denies trauma.  Which of the following would benefit this patient most?