INTRO - Integumentary system

Question 1

Explain the significance of Langer lines.

Answer 1

Incision across Langer lines disrupt more collagen fibers and cause wounds to gape and heal with excessive (keloid) scarring. Incisions parallel to Langer lines minimize this.

Question 2

Superficial lacerations

Answer 2

Superficial lacerations do not interrupt continuity of dermis - involve epidermis and possibly superficial dermis

Question 3

Deep lacerations

Answer 3

Extend into subcutaneous tissue and beyond, gape, and required suturing to minimize scarring

Question 4

Burns (degree)

Answer 4

1st: superficial - limited to epidermis
2nd: partial thickness - epidermal and superficial dermis damaged
3rd: full thickness - may be down to muscle and requires skin grafting to open area

Question 5

Rule of Nines

Answer 5

Anterior & posterior head and neck - 9%
Anterior & poster arms, forearms, and hands - 18%
Anterior & posterior trunk - 36%
Perinium - 1%
Anterior & posterior thighs, legs, and feet - 36%

Question 6

Major burns

Answer 6

3rd degree over 10%
2nd degree over 25%
3rd degree burns on the face, hands, feet, or perineum