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Venous Pulsation in the Neck Corresponds With the Electrocardiogram
Simultaneous recording of an electrocardiogram (top tracing) and jugular venous pressure waves (lower tracing). The a wave reflects right atrial
contraction just before the first heart sound and carotid pulse; atrial relaxation is reflected by the x descent; c wave reflects the bulging of the tricuspid
valve into the right atrium during ventricular isovolumetric contraction; x1 descent reflects subsequent atrial relaxation; v wave reflects the closure of
tricuspid valve and subsequent distention of the right atrium; and y descent reflects the right atrium emptying after the opening of the tricuspid valve.
Source: Abnormal Central Venous Pressure, The Rational Clinical Examination: Evidence-Based Clinical Diagnosis
Citation: Simel DL, Rennie D. The Rational Clinical Examination: Evidence-Based Clinical Diagnosis; 2016 Available at: http://mhmedical.com/
Accessed: May 03, 2017
Copyright © 2017 McGraw-Hill Education. All rights reserved
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