Upon auscultating a client’s lungs, the nurse identifies crackles in the left posterior base. What action should the nurse take?

Choice A rationale
Slough, which is a layer of yellowish, dead tissue that can develop on the surface of a wound, is not a defining characteristic of a stage 3 pressure ulcer.
Choice B rationale
Persistent reddening of the skin is typically associated with a stage 1 pressure ulcer, not a stage 3. In a stage 1 pressure ulcer, the skin remains intact but may be red and may not blanch (lose color briefly) when you press your finger on it.
Choice C rationale
A stage 3 pressure ulcer involves full-thickness skin loss that appears as a deep crater. The ulcer may extend into the subcutaneous tissue layer, but not through it to the underlying

muscle or bone. This description matches the statement in Choice C, making it the correct answer.
Choice D rationale
A fluid-filled area under the skin could potentially indicate a blister or a stage 2 pressure ulcer, not a stage 3. In a stage 2 pressure ulcer, the outer layer of skin (epidermis) and part of the underlying layer of skin (dermis) are damaged or lost.

Choice A rationale
It is a good practice to change the batteries in smoke detectors annually to ensure they are working properly. This statement does not indicate a need for further instruction.
Choice B rationale
Using a walker when going upstairs can be dangerous due to the risk of falls. It is recommended that individuals use handrails or assistance when navigating stairs, not a walker. This statement indicates that the client needs further instruction.
Choice C rationale
Leaving a night light on can help prevent falls by providing visibility during the night. This statement does not indicate a need for further instruction.
Choice D rationale

Installing grab bars in the bathroom, especially near the toilet and in the shower, can provide support and prevent falls. This statement does not indicate a need for further instruction.