When observing the waveform of an arterial line, the nurse notes the presence of a dicrotic notch. How should the nurse interpret this finding?

Question

Quizplus · Accepted Answer

1. This is not the cause for the dicrotic notch.
2. This is not the cause for the dicrotic notch.
3. The aortic valve closes and the mitral and tricuspid valves open in preparation for ventricular filling. The pulmonic valve closes at the same time as the aortic valve.
4. This is not the cause for the dicrotic notch.

When Observing the Waveform of an Arterial Line, the Nurse