Arterial waveform. Begin by palpating the radial or femoral arteries, feeling for a regular rhythm but alternating strong and weak pulses. Next use a blood pressure cuff to confirm the finding: Inflate the blood pressure cuff past systolic pressure and then slowly lower cuff pressure towards the systolic level. If alternating loud & soft Korotkoff sounds are heard,<unk>  is indicated.
Pulsus alternans
Pulsus paradoxus
Right axis deviation
Heart click
Third heart sound
Pulsus bigeminus
Precordial thump
Electrical alternans