Burns and Wound Healing Flashcards

1
Q

Epithelialization begins within day ____ and is complete within less than ____ hours in approximated incised wounds

A

Within day 1

Complete in less than 48 hours in closely approximated wounds

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2
Q

Steroids impair wound healing by:

A

Decreasing angiogenesis and macrophage migration

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3
Q

Nerve injury where there is focal demyelination

A

Neurapraxia

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4
Q

Nerve injury where there is complete transection

A

Neurotmesis

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5
Q

Proliferation stage roughly spans through day ___ to ___

A

Day 4-12

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6
Q

Wound contraction starts ________

A

Almost immediately after injury

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7
Q

Disruption of axonal continuity with preserved Schwann cell basal lamina

A

Axonotmesis

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8
Q

The major cause of impaired wound healing

A

Wound infection

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9
Q

Supplementation of Vitamin ____ improves wound healing in patients without micronutrient deficiency

A

Vitamin A

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10
Q

Regression of keloid vs hypertrophic scar

A

Keloids rarely regress

Hypertrophic scars regress over time

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11
Q

Treatment of choice for keloids

A

Excision and adjuvant therapy (e.g. radiation, intralesional steroids)

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12
Q

Most common cause of SBO, especially in the ileum

Most common cause of secondary infertility

A

Intraabdominal adhesions

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13
Q

Only growth factor approved for treatment of diabetic foot ulcers

A

PDGF

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14
Q

Most frequent nosocomial infection

A

UTI

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15
Q

Most common cause of empyema in a post-operative patient

A

Pneumonia

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16
Q

Primary cause of hyperbilirubinemia in a post-operative patient

A

Cholestasis

17
Q

Treatment of hydrofluoric acid skin burn

A

Application of calcium carbonate gel or local injection of calcium carbonate

18
Q

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

A

PTB > 10%

3rd degree burns (any %, any age group)

19
Q

More accurate chart for assessing TBSA in children

A

Lund and Browder chart

20
Q

Most accurate diagram for estimation of extent of burn in general

A

Berkow diagram

21
Q

Hemoglobinuria is associated with _____ acid burns

A

Formic acid

22
Q

Special burn treatment: for tar burns?

A

Apply petroleum jelly

23
Q

Special burn treatment: for sulfuric acid?

A

Wash with soap/lime then irrigate

24
Q

Essential cell for wound healing

A

Macrophages

25
Q

Chronic wounds are wounds that have not healed in:

A

3 months

26
Q

Day of peak number of fibroblasts:

A

Day 6

27
Q

Layer of intestine with greatest tensile strength

A

Submucosa

28
Q

Strongest chemotactic factor for fibroblasts

A

PDGF

29
Q

Burn with the highest mortality

A

Flame burn