Using Pulse Oximeters - WHO

[Pages:36]Using Pulse Oximeters

Tutorial 1 ? the basics

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? World Health Organization, 201?1.WAHllOri,g2h0ts11re. served.

The Pulse Oximeter

In this tutorial you will learn about:

? The function of a pulse oximeter ? How oxygen is transported to the tissues ? How a pulse oximeter can help you in anaesthesia

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? WHO, 2011.

This is a diagram of a pulse oximeter ? examine it carefully:

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? WHO, 2011.

What do the two numbers indicate? The answer is on the next slide

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? WHO, 2011.

The pulse rate is 72 beats per minute The oxygen saturation is 98%

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? WHO, 2011.

What is oxygen saturation?

Red blood cells contain haemoglobin which carries oxygen.

When haemoglobin is carrying oxygen it is described as "saturated with oxygen"

Red blood cells

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? WHO, 2011.

Arterial and venous blood contain different amounts of oxygen ? can you describe why?

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? WHO, 2011.

Lung-Circulation Unit

This diagram represents the lung and upper airway and the pulmonary blood flowing through the lungs

Oxygen in the air is breathed into the lung; carbon dioxide is breathed out

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? WHO, 2011.

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