A patient recently had a cardiac catheterization via right-radial approach. The patient has a compression device in place. The patient complains of numbness and pain in the right hand. The cardiac-vascular nurse notes a diminished pulse, with a cool and cyanotic hand. The nurse:

 calls the physician.
 performs an Allen’s test.
 reduces the pressure on the puncture site.
 uses the Doppler to assess for pulse signals.