Pressure ulcers are defined as skin injuries from prolonged pressure on tissues.

Pressure ulcers are defined as skin injuries from prolonged pressure on tissues.

• A. Skin injuries from prolonged pressure on tissues.
• B. Friction-only injuries.
• C. Infectious skin diseases.
• D. Allergic reactions.

Answer: (A)

Prolonged external pressure that reduces blood flow to tissues leads to localized skin and soft tissue damage. A pressure ulcer is this kind of injury caused by sustained pressure on the skin and underlying tissues, often over a bony prominence, and may involve deeper structures. The statement given captures this definition directly. Friction-only injuries arise from rubbing and abrasion rather than prolonged pressure; infectious skin diseases are caused by pathogens; allergic reactions are immune responses not driven by external pressure. In clinical practice, recognizing and preventing pressure ulcers in older adults centers on relieving pressure through turning schedules and pressure-relieving surfaces, maintaining skin integrity, and addressing factors like moisture, nutrition, and sensation.

Prolonged external pressure that reduces blood flow to tissues leads to localized skin and soft tissue damage. A pressure ulcer is this kind of injury caused by sustained pressure on the skin and underlying tissues, often over a bony prominence, and may involve deeper structures. The statement given captures this definition directly. Friction-only injuries arise from rubbing and abrasion rather than prolonged pressure; infectious skin diseases are caused by pathogens; allergic reactions are immune responses not driven by external pressure. In clinical practice, recognizing and preventing pressure ulcers in older adults centers on relieving pressure through turning schedules and pressure-relieving surfaces, maintaining skin integrity, and addressing factors like moisture, nutrition, and sensation.