A photoplethysmograph (PPG) can be used to detect Premature Ventricular Contraction (PVC) in a subject just as it can be detected using Electrocardiogram (EKG) and the Blood Pressure (BP) trace.

The original figure was provided by Kirk Shelley, Yale Medical School and modified by Stephen Linder, Dartmouth College.

{{cite journal |last1=Alian |first1=AA |last2=Shelley |first2=KH |title=Photoplethysmography. |journal=Best practice & research. Clinical anaesthesiology |date=December 2014 |volume=28 |issue=4 |pages=395-406 |doi=10.1016/j.bpa.2014.08.006 |pmid=25480769}}

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