Close-up of a patient monitor displaying oxygen saturation levels, with a focus on the detailed readout. The image highlights the critical monitoring of vital signs in a clinical setting

Close-up of a patient monitor displaying oxygen saturation levels, with a focus on the detailed readout. The image highlights the critical monitoring of vital signs in a clinical setting.

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Saturation (the level of oxygen in the blood) is measured using a pulse oximeter.

Oxygen saturation: normal and pathological values

In this final part, we look at how to measure oxygen saturation before giving oxygen. Taking a baseline reading is essential, as levels can rise quickly once oxygen is administered. A small, simple tool — but a critical step in emergency care. Missed Part 1 or 2? Find them on our profile. Follow us for more training content. | Scuba Scape