A nurse is caring for a client who is participating in a research study for an experimental chemotherapy medication. After three treatments, the experimental medication is discontinued due to evidence of rapidly advancing kidney failure. Which of the following ethical principles was demonstrated?

The correct answer is choice B. Necrotic subcutaneous tissue.

Choice A rationale:

Partial-thickness skin loss (Choice A) is characteristic of a stage II pressure ulcer, not a stage III ulcer. A stage II pressure ulcer involves the loss of the epidermis and possibly the dermis, resulting in a shallow open ulcer with a red-pink wound bed.

Choice B rationale:

Necrotic subcutaneous tissue is a manifestation of a stage III pressure ulcer. A stage III ulcer involves full-thickness skin loss where subcutaneous fat may be visible, but exposed bone or muscle is not yet present. Necrotic tissue in the wound bed indicates a more advanced level of tissue damage and the need for appropriate wound care to promote healing.

Choice C rationale:

Blood-filled blisters (Choice C) are not specific to pressure ulcers and are more commonly associated with friction or shear forces. These blisters are not indicative of a stage III pressure ulcer, which involves visible full-thickness tissue loss.

Choice D rationale:

Exposed bone (Choice D) is a characteristic of a stage IV pressure ulcer, not a stage III ulcer. A stage IV ulcer involves extensive tissue loss with exposure of muscle, tendon, or bone. This represents a severe level of tissue damage and requires intensive wound care and management.

Choice A rationale:

Enclosing the dressing in a single clear plastic bag and discarding it in the bedside trash receptacle is not the appropriate method for disposing of a dressing saturated with blood and purulent drainage. Blood and purulent drainage are considered potentially infectious materials, and they should be handled as biohazardous waste to prevent the spread of infection.

Choice B rationale:

This is the correct choice. When dealing with potentially infectious materials such as blood and purulent drainage, it's essential to dispose of them in a biohazardous waste container. This specialized container is designed to contain potentially infectious materials and prevent their spread, thereby protecting both healthcare workers and the environment.

Choice C rationale:

Discarding the dressing in the bedside trash receptacle is not the recommended approach for disposing of materials that are contaminated with blood and purulent drainage. Simply discarding it in the regular trash increases the risk of infection transmission and is not compliant with proper infection control practices.

Choice D rationale:

Double-bagging the dressing in clear bags and labeling it "biohazard" is a good practice to ensure proper containment. However, it's not the most comprehensive method of disposal. Placing the dressing in a dedicated biohazardous waste container is a more secure and standardized method for disposing of potentially infectious materials.