Pulsus alternans is seen in: March 2009: (A) MS with MR, (B) AS with AR, (C) Left ventricular failure, (D) Digitalis poisoning
Answer is C. Ans. C: Left ventricular failure Pulsus alternans is a physical finding characterized by a regular alternation of the force of the aerial pulse. It almost invariably indicates the presence of severe left ventricular systolic dysfunction.