NCWO Skin and Wound Healing

Question 1

The four phases of normal wound healing in order are:

Accepted Answer

Hemostasis, inflammation, proliferation, remodeling

Answer

Proliferation, hemostasis, inflammation, remodeling

Answer

Inflammation, hemostasis, remodeling, proliferation

Answer

Remodeling, proliferation, hemostasis, inflammation

Question 2

Which layer of the skin serves as the primary barrier to infection and water loss?

Accepted Answer

Epidermis (specifically the stratum corneum)

Answer

Hypodermis (subcutaneous tissue)

Answer

Dermis

Answer

Muscle fascia

Question 3

Collagen synthesis during wound healing is primarily the responsibility of which cell type?

Accepted Answer

Fibroblasts

Answer

Macrophages

Answer

Neutrophils

Answer

Keratinocytes

Question 4

Hypertrophic scarring differs from keloid scarring in that hypertrophic scars:

Accepted Answer

Remain within the original wound margins and may regress over time

Answer

Extend beyond the original wound boundaries

Answer

Contain no collagen

Answer

Only occur on the face and earlobes

Question 5

Factors that impair wound healing include all of the following EXCEPT:

Accepted Answer

Adequate tissue oxygenation

Answer

Diabetes mellitus with hyperglycemia

Answer

Malnutrition and protein deficiency

Answer

Corticosteroid therapy

Question 6

Angiogenesis during wound healing refers to:

Accepted Answer

Formation of new blood vessels from existing vasculature to support granulation tissue

Answer

The migration of epithelial cells across the wound bed

Answer

Contraction of the wound margins by myofibroblasts

Answer

Phagocytosis of bacteria by neutrophils