A nurse is providing oral hygiene for an unconscious client. What is the priority nursing intervention?

Choice A reason: Shearing or friction is the force that caused the injury, because it occurs when the skin and underlying tissues move in opposite directions, such as when the client slides down in bed. Shearing or friction can damage the blood vessels and reduce blood flow to the skin, resulting in tissue ischemia, necrosis, and ulceration.

Choice B reason: Pressure or gravity is not the force that caused the injury, because it occurs when the skin and underlying tissues are compressed between a bony prominence and an external surface, such as when the client lies on his back. Pressure or gravity can impair blood flow and oxygen delivery to the skin, resulting in tissue damage and ulceration.

Choice C reason: Chemical or pressure is not the force that caused the injury, because it occurs when the skin is exposed to a substance that causes irritation, inflammation, or corrosion, such as when the client has a wound dressing that contains an antiseptic or a topical agent. Chemical or pressure can damage the skin barrier and increase the risk of infection and delayed wound healing.

Choice D reason: Twisting and bending is not the force that caused the injury, because it occurs when the skin and underlying tissues are stretched or distorted, such as when the client twists his ankle or bends his knee. Twisting and bending can cause sprains, strains, or tears of the ligaments, tendons, or muscles.

Choice A reason: Padding hard surfaces is a nursing intervention that decreases the risk of pressure injuries, because it reduces the pressure, shear, and friction on the skin and underlying tissues. Hard surfaces, such as bed rails, wheelchair arms, or footrests, can cause compression or irritation of the skin, especially over the bony prominences. Padding hard surfaces with foam, gel, or air cushions can provide protection and comfort for the client.

Choice B reason: Keeping head of bed (HOB) at or less than 30 degrees is a nursing intervention that decreases the risk of pressure injuries, because it prevents the sliding or shifting of the client in bed. Sliding or shifting can cause shear and friction on the skin, especially over the sacrum, coccyx, or heels. Keeping head of bed (HOB) at or less than 30 degrees can maintain the alignment and stability of the client in bed.

Choice C reason: Keeping head of bed (HOB) elevated to 75 degrees is not a nursing intervention that decreases the risk of pressure injuries, but rather one that increases the risk of pressure injuries. Elevating the head of bed (HOB) to 75 degrees can cause the client to slide or shift in bed, which can increase the shear and friction on the skin, as explained above. Elevating the head of bed (HOB) to 75 degrees can also increase the pressure on the sacrum, coccyx, or heels, which can impair the blood flow and oxygen delivery to the skin and tissues.

Choice D reason: Having client sit in wheelchair as much as possible is not a nursing intervention that decreases the risk of pressure injuries, but rather one that increases the risk of pressure injuries. Sitting in wheelchair as much as possible can cause prolonged pressure, shear, and friction on the skin and underlying tissues, especially over the ischial tuberosities, sacrum, coccyx, or heels. Sitting in wheelchair as much as possible can also reduce the mobility and activity of the client, which can affect the blood circulation and muscle tone.

Choice E reason: Placing pillows between bony surfaces is a nursing intervention that decreases the risk of pressure injuries, because it relieves the pressure, shear, and friction on the skin and underlying tissues. Bony surfaces, such as the ankles, knees, hips, or elbows, can cause compression or irritation of the skin, especially when they are in contact with each other or with the bed. Placing pillows between bony surfaces can provide cushioning and separation for the skin and tissues.