Question

Which descriptions accurately characterize pulse oximetry? Check all that apply.

It is the best way to measure the heart rate.
It is performed using a photo sensor attached to a finger, toe, or earlobe.
It measures how saturated (full) the hemoglobin molecules are with oxygen.
It works well, even when blood pressure is low.
It cannot detect low levels of hemoglobin.

Answer 1

It is performed using a photo sensor attached to a finger, toe, or earlobe.

Step-by-step explanation:

Pulse oximetry is a test used to measure the oxygen level (oxygen saturation) of the blood. It is an easy, painless measure of how well oxygen is being sent to parts of your body furthest from your heart, such as the arms and legs.