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Return to PCP's website Return to Pressure Ulcers   Welcome > Menu > Module 1 – Understanding Pressure Ulcers > Topic 2: Skin Anatomy and Development of a Pressure Ulcer > Tissue Tolerance  
 

Tissue Tolerance

A flow-chart starting with tissue tolerance branching out to extrinsic factors (primary), subsequently flowing to moisture, friction and shear. The other branch reaches intrinsic factors (secondary), subsequently flowing to nutrition, demographics, oxygen delivery, skin temperature and chronic illness.

The other factor affecting the development of a PU, as a result of point-pressure, is the ability of both the skin and its underlying supporting structures to endure pressure without adverse sequelae.

A wide range of factors affects tissue tolerance.  These are generally organised into two major groups:

  • Extrinsic (primary or management related factors)
  • Intrinsic (secondary or patient-condition related factors)
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Last updated: 27 March, 2008
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