Wound Interventions: Topical Agents Flashcards
Topical antimicrobial therapy is what
Applied to the surface of the wound to destroy the pathogens infecting the wound
Topical antimicrobial therapy preparation types
Ointment (oil in water)
Creams (oil in water emulsions) - contain more water than oil
Solutions
Impregnated dressings
Antimicrobial beads (surgically implanted)
Silvadene AKA
Silver sulfadiazine
Silvadene is what
silver nitrate plus sodium sulfadiazine
Silvadene is what preparation type
cream
Silvadene effect is what
Bactericidal effect
Acts on cell wall
Broad spectrum
Silvadene - do not use on pt with
Sulfa allergies
Silvadene - up to ___% of pts develop ___
15% develop leukopenia
Silvadene - research is divided on its effect on what
Fibroblasts and keratocytes - most say it is helping with granulation and epithelialization
Silvadene - My react with
other agents like Betadine
Will brun the skin when the interaction occurs
Neomycin Sulfate works how
Ointment or cream
Inhibits protein synthesis
Most effective against staph
Neomycin - Often combined with
bacitracin and polymexin B sulfate to make neosporin - this inc its effectiveness against both staph and strep
Neomycin - negatives to it
Significant incidence of allergic sensitivity
Resistance may develop
Gentamycin is what
effective against gram neg bacteria including e coli and pseudomonas
Ointment or cream
Gentamycin - negatives
pt who have a sulfa allergy
Development of resistance is a big problem
Often cause hypersensitivity reactions at the skin level
Systemic toxicity is possible in pts with impaired renal or liver function
Wound cleaners (non enzymatic topical agents) - characteristics
Solution that lowers the surface tension or particulate matter within the wound
NOT FDA regulated
All are cytotoxic
Will delay wound healing
Wound cleaners (non enzymatic topical agents) - contraindicated in
clean wounds, or tunneling wounds
Topical antiseptic agent used for what
Applied to wound in order to prevent infection and decrease bacterial load
Might also act as a chemical debriding agent
Ex - betadine
Hydrogen peroxide
Foaming effervescence
Considered to be cytotoxic to fibroblasts (when used while they are active)
Povidine Iodine (Betadine)
Cytotoxic at .05% concentrations
Reacts with other topical agents particularly silver sulfadizine
Use on intact skin in prep for procedures
Can also use to stop epithelialization and dry wound edges
Acetic acid
Vinegar
.003% cytotoxicity
Dakins soluation
Sodium hypochlorite (bleach) Very cytotoxic at any concentration
Chloramine T
Chlorazene
Not used topically
Is an additive for whirlpools and used to clean surfaces
Moisture control (dehydration)
Astringents!
- Tea (tannins)
- Witch hazel
- Silver nitrate
- Calamine lotion
- Epsom salts (Mg sulfate)
- Baby powder/talcum powder/corn startch