title: A simple method to determine patency of the ulnar artery intraoperatively prior to radial-artery cannulation.
mesh_terms: D001132:Arm / Q000098:blood supply*; D001158:Arteries / Q000502:physiology*; D002404:Catheterization; D006801:Humans; D008722:Methods; D010991:Plethysmography; D011674:Pulse; D013514:Surgical Procedures, Operative; D013933:Thumb / Q000098:blood supply