Chapter 7: Vital Signs

Oxygen Saturation Summary and Activities

Measuring oxygen saturation via pulse oximetry is a non-invasive way to quickly assess a client’s oxygen level. The results reflect a person’s oxygenation status and provide data for healthcare providers’ diagnostic reasoning.

The sensor can be attached in many ways, including clipping and taping probes to the finger, toe, earlobe, and forehead. The type and location of the apparatus is selected based on the client’s age, the presence of vasoconstriction, the adequacy of peripheral perfusion, whether intermittent or continuous monitoring is required, and the client’s health and illness state.

When determining the relevance of the oxygen saturation reading, healthcare providers consider the client’s health and wellness state. Specifically, they consider other data related to oxygenation including respiratory quality, rate, and rhythm; pulse; skin colour and temperature; and the client’s subjective description of ease or difficulty breathing. Decreases in oxygen saturation readings are potentially life-threatening and require immediate intervention.

Activity: Check your Understanding

Now you have an opportunity to find errors in measurement techniques. The first activity involves watching a short film clip. Check it out!

What error in technique is this healthcare provider making while measuring oxygen saturation in Film clip 3?

Film clip 3 Oxygen saturation taken incorrectly

 

Now you have an opportunity to find errors in measurement techniques by looking at an image.

Which image shows the correct technique while measuring oxygen saturation?

Now that you have completed the O2 saturation content, it’s time to test your knowledge. Try to answer the following questions.