Pressure injury staging, wound healing phases, dressing selection, ostomy types and skin care, negative pressure wound therapy.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What defines a Stage 1 pressure injury?
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Intact skin with non-blanchable redness over a bony prominence.
- What defines a Stage 2 pressure injury?
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Partial-thickness skin loss with exposed dermis, often seen as an intact or ruptured serum-filled blister.
- What defines a Stage 3 pressure injury?
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Full-thickness skin loss with visible fat; granulation tissue and rolled edges may be present, but no exposed muscle, tendon, or bone.
- What defines a Stage 4 pressure injury?
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Full-thickness skin and tissue loss with exposed muscle, tendon, or bone.
- What defines an Unstageable pressure injury?
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Full-thickness skin and tissue loss where the wound base is obscured by slough or eschar, so depth cannot be determined.
- What defines a Deep Tissue Pressure Injury (DTPI)?
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Intact or non-intact skin with a persistent, non-blanchable deep red, maroon, or purple area caused by damage to underlying soft tissue.
- What is a Medical Device-Related Pressure Injury?
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A pressure injury caused by a diagnostic or therapeutic device, matching the shape or pattern of that device.
- What is a Mucosal Membrane Pressure Injury?
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A pressure injury on a mucous membrane caused by a medical device at that site; it cannot be staged using the skin staging system.
- What is the purpose of the Braden Scale?
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To predict a patient's risk of developing a pressure injury.
- What are the six subscales of the Braden Scale?
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Sensory perception, moisture, activity, mobility, nutrition, and friction/shear.
- What happens during the hemostasis phase of wound healing?
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Blood vessels constrict and platelets aggregate to form a clot, stopping bleeding within minutes of injury.
- What happens during the inflammatory phase of wound healing?
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Neutrophils and macrophages clear debris and bacteria, producing redness, warmth, and swelling; it lasts about 1 to 5 days.
- What happens during the proliferative phase of wound healing?
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Fibroblasts build new collagen and granulation tissue forms while wound edges re-epithelialize, lasting roughly days to about 3 weeks.
- What happens during the maturation phase of wound healing?
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Collagen remodels and the wound gains tensile strength; this phase can continue for months to over a year.
- What is healing by primary intention?
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Wound edges are clean and surgically approximated and closed, healing with minimal scarring.