Flashcards in Dressing Selection and Bandaging Deck (118)
What are the 6 benefits of moist wound healing?
- facilitates all 3 phases of healing
- decreases the intensity and length of the inflammatory phase
- traps endogenously produced enzymes within the wound bed, facilitating autolytic debridement
- preserves endogenously produced growth factors within the wound fluid
- reduces patient pain complaints
- results in a more cosmetically appealing scar
What are 3 consequences if the wound is too moist?
- Additional skin damage/ulcer
- Increased chance of infection
What are 2 consequences if the wound is too dry?
- Crust formation
- Lack enzymes/ growth factors
What did Heather Hettrick compare a perfectly moist wound to?
al dente pasta
What are 5 functions of wound dressings?
- Create moist environment
- Provide thermal insulation
- Control edema
- Eliminate dead space within wound bed
Wounds heal faster if the environment is maintained between __ and __ decrees Celsius.
Why is maintaining wound temperature between 37 and 38 degrees important?
It enhances tissue perfusion by causing vasodilation.
Increases oxygen saturation and decreases hemoglobin's affinity for oxygen.
Wound temperature decreases with each dressing change and may remain decreased for up to __ minutes after a dressing change.
Why must dead space within a wound be eliminated?
to prevent premature wound closure and abscess formation
What are the 2 basic types of wound dressings?
Describe a primary wound dressing
It comes into direct contact with the wound and, therefore, is sometimes called the contact layer
Describe a secondary wound dressing
It is placed over the primary dressing to provide protection, cushioning, absorption, or occlusion
True or False
Alli Volkens spent countless hours making these notecards therefore should be the only one who uses them to study.
If you did not contribute please kindly remove yourself and make your own cards.
A moist wound heals _-_ times faster than a dry wound
What is an example of a primary dressing that does not require a secondary dressing?
What type of dressings are specialized synthetic or organic dressings that are typically more occlusive than gauze?
What does occlusion describe?
The ability of the dressing to transmit moisture vapor and gases from the wound bed to the atmosphere.
Describe truly occlusive and truly nonocclusive substances.
A truly occlusive substance, such as latex, is impermeable to water, vapor, or bacteria.
A truly nonocclusive substance, such as air, is completely permeable to water, vapor, and bacteria.
Moisture-retentive dressings have a ____ moisture vapor transmission rate than gauze. What does this mean?
They are better able to trap wound fluid rich in enzymes, neutrophils, growth factors, and macrophages within the wound bed.
Lower moisture vapor transmission rates are associated with _____ wound healing and _____ pain complaints.
What are 2 common fears associated with the use of moisture-retentive dressings?
- trauma to the wound bed and surrounding skin
What are the 4 reasons why occlusive dressings have lower infection rates compared to nonocclusive dressings?
- they serve as a bacterial barrier
- they require less frequent dressings changes
- facilitate the neutralization of micoorganisms by retaining macrophages and neutrophils
- facilitates the removal of necrotic tissue and debris microbes feed upon by preserving endogenous enzymes within the wound fluid
The risk of infection when using moisture-retentive dressings can be further reduced by following a few simple guidelines. What are they?
- should be changes if the barrier properties become compromised
- more frequent dressing checks should be performed in immunocompromised patients due to the risk of silent infections
- discontinue if the signs of infection are detected
What are the 2 exceptions in which moisture-retentive dressings can be used on infected wounds?
Semipermeable foams and alginates
What prevents the moisture-retentive dressing from adhering to the wound bed?
the interaction of the dressing with the wound fluid
How should moisture-retentive dressings be removed in order to reduce the risk of skin trauma?
The edge of the dressing should be lifted up near the corner and then stretched longitudinally to decrease the dressing's adhesion to the skin's surface
On the wound dressing continuum of occlusion what is the least occlusive and what is the most occlusive?
Least: traditional gauze
What are the 8 main categories of wound dressings on the market today?
- gauze dressings
- impregnated gauze dressings
- semipermeable films
- semipermeable foams
- composite dressings
What are the 2 types of gauze dressings?
woven and nonwoven