Which factors may lead to inaccurate pulse oximetry readings?

A) The patient drinks four to six beers every night.
B) The patient has thick gel polish on the fingernails.
C) The patient was admitted with heatstroke.
D) The patient's hemoglobin level is dangerously low.
E) The patient has a generalized mild sunburn.

Question

Miguel Garcia · Accepted Answer

Final Answer : B,D, Explanation :  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.

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