Types of pressure
There are
three main types of pressure that can lead to the development of pressure
ulcers.
These are:
- interface pressure – the pressure of the body pressing the skin down onto a firm surface
- shear – the pressure that occurs when layers of skin are forced to slide over one another or deeper layers of tissue; shear can occur when a person slides down or is pulled up out of a bed or wheelchair
- friction – pressure caused by something rubbing against the surface of the skin, such as a mattress or clothing
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