Photoplethysmogram

（重定向自Photoplethysmography）

Representative PPG taken from an ear pulse oximeter. Variation in amplitude are from Respiratory Induced Variation.

Premature Ventricular Contraction (PVC) can be seen in the PPG just as in the EKG and the Blood Pressure (BP).

Venous pulsations can be clearly seen in this PPG.

A photoplethysmogram (PPG) is an optically obtained plethysmogram, a volumetric measurement of an organ. A PPG is often obtained by using a pulse oximeter which illuminates the skin and measures changes in light absorption. A conventional pulse oximeter monitors the perfusion of blood to the dermis and subcutaneous tissue of the skin.

单词	Photoplethysmography
释义	Photoplethysmography 英语百科 Photoplethysmogram （重定向自Photoplethysmography） A photoplethysmogram (PPG) is an optically obtained plethysmogram, a volumetric measurement of an organ. A PPG is often obtained by using a pulse oximeter which illuminates the skin and measures changes in light absorption. A conventional pulse oximeter monitors the perfusion of blood to the dermis and subcutaneous tissue of the skin.
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