Cardiac Cycle and Heart Sounds — ECG Academy Lesson

Bring Module 2 together: systole, diastole, heart sounds mapped to the EKG, cardiac output, and why heart rate extremes matter for the patient.

Learning Objectives

• Define systole and diastole and describe what occurs during each phase
• Correlate the timing of S1 and S2 heart sounds with the EKG waveform
• Calculate cardiac output from heart rate and stroke volume
• Explain how heart rate extremes affect diastolic filling and cardiac output