Next, you have an opportunity to watch a short film clip on accurate measurement techniques. Watch this film clip 4.2 to see how to measure oxygen saturation correctly using a pulse oximeter. After the clip, try the technique yourself. You can watch the clip and practice as many times as you like.
Alternatively, if viewing textbook as a pdf, use this link: https://www.youtube.com/embed/6KTG1lWQ8bs?rel=0
Film clip 4.2: Oxygen saturation taken correctly