MedMigrant

Question 197 · LEK · Cross-cutting topics

Which of the following characterizes pulsus bisferiens?

  1. A. pulse when premature ventricular depolarization occurs after each normal cardiac systole; it is observed in ectopic depolarization accompanying the sinus rhythm, in Wenckebach periodicity - atrioventricular 3:2 block or when additional atrial action potential is blocked after every second sinoatrial node action potential.
  2. B. pulse with two positive waves during systole, caused by the presence of an additional wave of blood flow, that occurs in hypertrophic cardiomyopathy with narrowing of the outflow tract and in mixed aortic stenosis and regurgitation.
  3. C. pulse in which one wave occurs in systole and the other at the beginning of diastole, usually observed in cardiac tamponade, severe heart failure or hypovolemic shock.
  4. D. quick and hypokinetic pulse that occurs in the shock, rarely in fever or cardiac tamponade.
  5. E. pulse of low amplitude or even absent accompanied by a decrease in systolic pressure >10 mmHg on inspiration.
Hint

'Bisferiens' means striking twice — in which phase of the cardiac cycle do both peaks occur?

The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.

Create a free account Log in

More questions on Internal medicine