File:NiprideEffectOnPPG-large.png

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Summary

The effects of w:Sodium Nitroprusside (Nipride), a peripheral vasodilator, on the finger photoplethysmograph (PPG) and blood pressure (BP) of a sedated subject. As expected the PPG amplitude increases after infusion and additionally the Respiratory Induced Variation (RIV) becomes enhanced.

The subject is under general anesthesia and mechanically ventilated. The mechanical ventilation can make the RIV easier to detect. Two single breaths are highlighted.

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

{{cite journal |last1=Shelley |first1=KH |title=Photoplethysmography: beyond the calculation of arterial oxygen saturation and heart rate. |journal=Anesthesia and analgesia |date=December 2007 |volume=105 |issue=6 Suppl |pages=S31-6, tables of contents |doi=10.1213/01.ane.0000269512.82836.c9 |pmid=18048895}}

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current03:00, 10 November 2006Thumbnail for version as of 03:00, 10 November 2006948 × 689 (570 KB)Spl4The effects of Sodium Nitroprusside(Nipride) a peripheral vasodilator on the finger PPG of a sedated subject. As expected the PPG amplitude increases after infusion and additionally the Respiratory Induced Variation (RIV) becomes enhanced. The origi

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