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What is Understanding Perfusion Index in Oximetry about?
The perfusion index (PI) indicator measures the fluctuation rate of light received by a photo diode during pulse oximetry measurements. When peripheral perfusion is low, the measurement value becomes unstable and inaccurate. The PI provides a four-level indicator of perfusion quality, with higher values indicating more sufficient perfusion for accurate oxygen saturation readings. Conditions like shock, low blood pressure, cold fingers, or compressed tissue can cause low peripheral perfusion.
- Author
- Propan Hanggada Satyamakti M
- Language
- EN