Which factors may lead to inaccurate pulse oximetry readings?

Question

Quizplus · Accepted Answer

A vascular,pulsatile area (e.g.,fingertip or earlobe)is needed to detect the degree of change in the transmitted light.Factors that affect light transmission (e.g.,sensor movement,fingernail polish)or peripheral arterial pulsations (e.g.,hypotension,anemia)also affect the measurement of SpO₂.An awareness of these factors allows for accurate interpretation of abnormal SpO₂ measurements.Mild sunburn,alcohol intake,and heatstroke would not lead to inaccurate pulse oximetry readings.

Which Factors May Lead to Inaccurate Pulse Oximetry Readings