Pressure ulcers are directly caused by which of the following conditions at the site?

Question

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Pressure ulcers are caused by unrelieved pressure that compromises blood flow to an area,resulting in ischemia (inadequate blood supply)in the underlying tissue.Friction and shear are extrinsic factors affecting skin integrity,which increases the risk of a client developing a pressure ulcer but is not the direct cause.Inadequate arterial blood flow to an area as a result of pressure causes the development of a pressure ulcer.Edema leads to compromised skin and tissue integrity,which is more prone to pressure injury.

Pressure Ulcers Are Directly Caused by Which of the Following