Week 5 - Tissue Integrity and Clinical Judgement Flashcards
(55 cards)
What is tissue integrity?
The state of structurally intact and physiologically functioning epithelial tissues like skin, subcutaneous tissue, and mucous membranes.
What are the three layers of the skin?
Epidermis, Dermis, and Subcutaneous tissue.
What cells are found in the epidermis?
Squamous epithelial cells, keratinocytes, melanocytes, Merkel cells, and Langerhans cells.
What are key components of the dermis?
Connective tissue, blood vessels, lymph vessels, collagen, and elastin.
What is the function of the subcutaneous tissue?
Insulation, shock absorption, protection of internal organs, and assistance in thermoregulation.
Name four protective functions of the skin.
Protection from injury, infection, UV radiation, and temperature changes.
What sensory roles does the skin perform?
Perception of touch, pain, pressure, and vibration.
What factors contribute to healthy skin integrity?
Hydration, nutrition, perfusion, mobility, and absence of chronic illness.
How does aging affect skin integrity?
Decreased elasticity, collagen, subcutaneous tissue, and hydration; increased risk of tears and pressure injuries.
Why are infants at risk for impaired skin integrity?
Immature skin structure and increased risk of maceration and dermatitis.
How does diabetes affect skin integrity?
Causes chronic hyperglycemia which impairs perfusion and sensation, delaying wound healing.
What lifestyle choices negatively impact tissue integrity?
Smoking and excessive UV exposure (tanning).
Name subjective data relevant to a skin assessment.
Health history, medical conditions, lifestyle, and hygiene practices.
What is nonblanchable erythema?
Redness that does not fade when pressed; indicates tissue damage.
What is blanchable erythema?
Redness that turns white with pressure; typically reversible.
What skin changes might indicate poor perfusion?
Pallor and cool temperature on palpation.
How is cyanosis assessed in dark skin tones?
Check palms, soles, nail beds, tongue, and conjunctiva for bluish/gray discoloration.
What is petechiae?
Small pinpoint red or purple spots due to bleeding under the skin.
Q: What is skin turgor and what does it assess?
Skin elasticity; used to assess hydration.
What is tenting in a turgor test?
Skin stays raised when pinched, indicating dehydration.
What is the Braden Scale used for?
To assess risk for pressure injuries and evaluate skin integrity.
What are nursing interventions to maintain skin integrity?
Repositioning, hygiene, hydration, nutrition, protective dressings, and use of supportive surfaces.
How often should high-risk patients be repositioned?
At least every 2 hours or more frequently if needed.
What is the ideal bed positioning to reduce pressure?
Keep the head of the bed lower than 30 degrees and use pillows or wedges for support.