it a physical finding with arterial pulse waves showing an alternating strong&weak beats with regular intervals.
it is an indicative of a sever lt.ventricular impairment(lt. sided heart failure).&carries a poor prognosis.
*sever obstructive pulm.disease(eg
-palpate the radial artery& feel for the regular rhythem, you will find an alternating strong&weak pulse…to cofirm:
-use a bp cuff,infilate the pressure to above the systolic level.then lower the pressure slowly toward the systolic level& hear the korotkoof sounds.
*you will hear an alternating loud&soft korotkoof sounds.this imdicates pulsis alternans.