Understanding Pulse Oximeters and Their Limitations

This chapter provides an in-depth analysis of pulse oximeters, discussing how they work, their limitations, and the importance of knowing specific wavelengths. The speakers also examine the accuracy of oxyhemoglobin saturation determined by digital pulse oximetry and factors that can affect it, including medication administration. Additionally, they discuss the impact of substances like phenylaffrin and nail polish on pulse oximetry readings, highlighting the potential for inaccurate results.