Radial artery puncture and the Allen test.
D001157:Arterial Occlusive Diseases / Q000175:diagnosis*; D001158:Arteries; D001784:Blood Gas Analysis / Q000379:methods*; D006801:Humans; D011677:Punctures; D011884:Radius / Q000098:blood supply; D014457:Ulna / Q000098:blood supply