Burns and Wound Healing Flashcards
Epithelialization begins within day ____ and is complete within less than ____ hours in approximated incised wounds
Within day 1
Complete in less than 48 hours in closely approximated wounds
Steroids impair wound healing by:
Decreasing angiogenesis and macrophage migration
Nerve injury where there is focal demyelination
Neurapraxia
Nerve injury where there is complete transection
Neurotmesis
Proliferation stage roughly spans through day ___ to ___
Day 4-12
Wound contraction starts ________
Almost immediately after injury
Disruption of axonal continuity with preserved Schwann cell basal lamina
Axonotmesis
The major cause of impaired wound healing
Wound infection
Supplementation of Vitamin ____ improves wound healing in patients without micronutrient deficiency
Vitamin A
Regression of keloid vs hypertrophic scar
Keloids rarely regress
Hypertrophic scars regress over time
Treatment of choice for keloids
Excision and adjuvant therapy (e.g. radiation, intralesional steroids)
Most common cause of SBO, especially in the ileum
Most common cause of secondary infertility
Intraabdominal adhesions
Only growth factor approved for treatment of diabetic foot ulcers
PDGF
Most frequent nosocomial infection
UTI
Most common cause of empyema in a post-operative patient
Pneumonia
Primary cause of hyperbilirubinemia in a post-operative patient
Cholestasis
Treatment of hydrofluoric acid skin burn
Application of calcium carbonate gel or local injection of calcium carbonate
Referral to burn center:
- Partial thickness burn >____%
- 3rd degree burn >_____%
- Inhalational burn
- Electrical/Chemical burn
- Burns involving face, hands, feet, genitalia, -
perineum, major joints
- Burn + comorbidities
- No qualified personnel to handle burns (children)
- Need for special, social, emotional rehabilitation
PTB > 10%
3rd degree burns (any %, any age group)
More accurate chart for assessing TBSA in children
Lund and Browder chart
Most accurate diagram for estimation of extent of burn in general
Berkow diagram
Hemoglobinuria is associated with _____ acid burns
Formic acid
Special burn treatment: for tar burns?
Apply petroleum jelly
Special burn treatment: for sulfuric acid?
Wash with soap/lime then irrigate
Essential cell for wound healing
Macrophages
