Answer to Question 1
ANS: D
A biologic dressing is used for several reasons: It helps control infection by covering denuded areas, it prevents loss of serum, it decreases pain, it seems to stimulate the formation of epithelium in dermis under it, and it promotes growth of granulation tissue. Biologic dressings may be allografts of human skin from a living or cadaver donor, placental or amniotic membranes, or a xenograft of porcine skin.
Answer to Question 2
ANS: F
The rule of nines chart is used to estimate burn injury of an adult. The body surface of an adult can be divided into areas equal to multiples of 9 of the total body surface.