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Conceptual Schema for Etiologic<br />

Factors in Pressure Sore Development<br />

Intensity & Duration<br />

of Pressure<br />

Pressure Sore<br />

Development<br />

Tissue Tolerance<br />

3 R’s<br />

Redistribution Surfaces*<br />

◦ Reactive<br />

◦ Active<br />

◦ Non-powered<br />

◦ Powered<br />

Remobilization<br />

Repositioning<br />

Mobility<br />

Activity<br />

Sensory Perception<br />

Extrinsic Factors<br />

Moisture<br />

Friction & Shear<br />

Intrinsic Factors<br />

Nutrition<br />

Aging<br />

Low arteriolar pressure<br />

Low oxygen tension<br />

INTERVENTIONS TO DIMINISH<br />

EXPOSURE TO PRESSURE<br />

*See www.npuap.org - click on Research- then on Support Surface Standards Initiative<br />

8/7/2012<br />

11

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