Pulsus alternans – MCQ – Answer

Pulsus alternans – MCQ – Answer

Which of the following can exaggerate pulsus alternans? Correct answer: d) All of the above

In addition to this, reduction of venous return pharmacologically with nitroglycerin can also exaggerate pulsus alternans. Even though pulsus alternans may be precipitated by a ventricular ectopic beat, pulsus alternans itself occurs in a regular rhythm. This contrasts with pulsus bigeminus which is an irregular rhythm.

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Reference: Braunwald’s Heart Disease: A Textbook of Cardiovascular Medicine, 10th Edition. Chapter 8: Physical Examination of the Heart and Circulation