CWCN® Certified Wound Care Nurse — Exam
2026–2027 | Comprehensive 100-Question
Practice Test with Answers & Rationales| Pdf
Access Already Graded A+.
Exam Format: Multiple Choice (4 options each)
Total Questions: 100
Content Domains: Assessment & Care Planning (35%) · Intervention & Treatment (40%) ·
Education & Referral (25%)
Time Allowed: 2 hours
SECTION 1: Wound Healing Process & Physiology (Questions 1–20)
1. Which phase of wound healing is characterized by vasoconstriction followed by platelet
aggregation and fibrin clot formation?
A. Inflammatory phase
B. Proliferative phase
C. Maturation phase
D. Hemostasis phase
Answer: D) Hemostasis phase
Rationale: Hemostasis is the immediate response to injury, involving transient vasoconstriction
to limit blood loss, platelet adhesion and aggregation, and activation of the coagulation cascade
resulting in fibrin clot formation .
2. Which cell type is primarily responsible for collagen synthesis during the proliferative phase
of wound healing?
A. Macrophage
B. Neutrophil
,C. Fibroblast
D. Keratinocyte
Answer: C) Fibroblast
Rationale: Fibroblasts produce collagen and extracellular matrix, forming new granulation
tissue. Keratinocytes are responsible for epithelialization, while macrophages orchestrate
healing but do not synthesize collagen .
3. Matrix metalloproteinases (MMPs) contribute to chronic wounds through which
mechanism?
A. Promoting angiogenesis
B. Excessive degradation of extracellular matrix
C. Stimulating fibroblast proliferation
D. Enhancing collagen cross-linking
Answer: B) Excessive degradation of extracellular matrix
Rationale: In chronic wounds, an imbalance where MMPs outweigh their inhibitors (TIMPs)
leads to excessive tissue degradation and stalls healing .
4. During which phase of wound healing does angiogenesis primarily occur?
A. Hemostasis
B. Inflammatory phase
C. Proliferative phase
D. Maturation phase
Answer: C) Proliferative phase
Rationale: Angiogenesis—the formation of new blood vessels from pre-existing ones—is
essential during the proliferative phase for supplying nutrients to granulation tissue .
5. A wound stalled in the inflammatory phase is most likely characterized by which finding?
A. Pink, epithelialized wound bed
B. Excessive MMP activity and tissue degradation
C. Rapid wound contraction
D. Mature scar formation
,Answer: B) Excessive MMP activity and tissue degradation
Rationale: Chronic wounds stalled in inflammation have an imbalance where MMPs outweigh
TIMPs, leading to excessive ECM breakdown .
6. The inflammatory phase of wound healing is primarily characterized by:
A. Collagen synthesis and wound contraction
B. Hemostasis, vasodilation, and phagocytosis
C. Epithelial cell migration across the wound surface
D. Scar remodeling and realignment of collagen
Answer: B) Hemostasis, vasodilation, and phagocytosis
Rationale: The inflammatory phase (days 1–4) involves hemostasis, vasodilation, and phagocytic
activity by neutrophils and macrophages to remove bacteria and debris .
7. Which growth factor is most associated with stimulating fibroblast proliferation?
A. Vascular endothelial growth factor (VEGF)
B. Platelet-derived growth factor (PDGF)
C. Epidermal growth factor (EGF)
D. Transforming growth factor-beta (TGF-β)
Answer: B) Platelet-derived growth factor (PDGF)
Rationale: PDGF is released by platelets during hemostasis and is a potent chemoattractant and
mitogen for fibroblasts, stimulating them to migrate and proliferate .
8. What is the primary advantage of maintaining a moist wound environment?
A. Increased scab formation
B. Enhanced epithelial cell migration
C. Reduced oxygen diffusion to tissues
D. Complete elimination of exudate
Answer: B) Enhanced epithelial cell migration
Rationale: Moist wound environments support epithelial migration, angiogenesis, and autolytic
debridement, accelerating healing. Dry environments promote scab formation, which acts as a
barrier to epithelialization .
, 9. Which nutrient is most critical for collagen synthesis during wound healing?
A. Vitamin C
B. Vitamin K
C. Vitamin B12
D. Carbohydrates
Answer: A) Vitamin C
Rationale: Vitamin C is essential for collagen synthesis, cross-linking, and fibroblast proliferation,
all of which are necessary for tissue repair .
10. The maturation phase of wound healing is characterized by:
A. Platelet aggregation and clot formation
B. Collagen cross-linking and scar remodeling
C. Neutrophil infiltration and phagocytosis
D. Angiogenesis and granulation tissue formation
Answer: B) Collagen cross-linking and scar remodeling
Rationale: The maturation phase (weeks to years) involves type I collagen cross-linking and scar
remodeling, reaching 80% tensile strength by year 1 .
11. Epibole refers to which wound characteristic?
A. Hardened tissue surrounding the wound
B. Rolled or curled wound edges that impede healing
C. New tissue formed during healing
D. Softening of tissue due to moisture
Answer: B) Rolled or curled wound edges that impede healing
Rationale: Epibole occurs when wound edges curl inward, signaling that epithelial cells have
migrated down the sides rather than across the wound bed, effectively stalling healing .
12. What is the primary mechanism of negative pressure wound therapy (NPWT)?
A. Increases bacterial colonization
B. Promotes tissue ischemia
C. Removes exudate and enhances perfusion
D. Promotes scab formation
2026–2027 | Comprehensive 100-Question
Practice Test with Answers & Rationales| Pdf
Access Already Graded A+.
Exam Format: Multiple Choice (4 options each)
Total Questions: 100
Content Domains: Assessment & Care Planning (35%) · Intervention & Treatment (40%) ·
Education & Referral (25%)
Time Allowed: 2 hours
SECTION 1: Wound Healing Process & Physiology (Questions 1–20)
1. Which phase of wound healing is characterized by vasoconstriction followed by platelet
aggregation and fibrin clot formation?
A. Inflammatory phase
B. Proliferative phase
C. Maturation phase
D. Hemostasis phase
Answer: D) Hemostasis phase
Rationale: Hemostasis is the immediate response to injury, involving transient vasoconstriction
to limit blood loss, platelet adhesion and aggregation, and activation of the coagulation cascade
resulting in fibrin clot formation .
2. Which cell type is primarily responsible for collagen synthesis during the proliferative phase
of wound healing?
A. Macrophage
B. Neutrophil
,C. Fibroblast
D. Keratinocyte
Answer: C) Fibroblast
Rationale: Fibroblasts produce collagen and extracellular matrix, forming new granulation
tissue. Keratinocytes are responsible for epithelialization, while macrophages orchestrate
healing but do not synthesize collagen .
3. Matrix metalloproteinases (MMPs) contribute to chronic wounds through which
mechanism?
A. Promoting angiogenesis
B. Excessive degradation of extracellular matrix
C. Stimulating fibroblast proliferation
D. Enhancing collagen cross-linking
Answer: B) Excessive degradation of extracellular matrix
Rationale: In chronic wounds, an imbalance where MMPs outweigh their inhibitors (TIMPs)
leads to excessive tissue degradation and stalls healing .
4. During which phase of wound healing does angiogenesis primarily occur?
A. Hemostasis
B. Inflammatory phase
C. Proliferative phase
D. Maturation phase
Answer: C) Proliferative phase
Rationale: Angiogenesis—the formation of new blood vessels from pre-existing ones—is
essential during the proliferative phase for supplying nutrients to granulation tissue .
5. A wound stalled in the inflammatory phase is most likely characterized by which finding?
A. Pink, epithelialized wound bed
B. Excessive MMP activity and tissue degradation
C. Rapid wound contraction
D. Mature scar formation
,Answer: B) Excessive MMP activity and tissue degradation
Rationale: Chronic wounds stalled in inflammation have an imbalance where MMPs outweigh
TIMPs, leading to excessive ECM breakdown .
6. The inflammatory phase of wound healing is primarily characterized by:
A. Collagen synthesis and wound contraction
B. Hemostasis, vasodilation, and phagocytosis
C. Epithelial cell migration across the wound surface
D. Scar remodeling and realignment of collagen
Answer: B) Hemostasis, vasodilation, and phagocytosis
Rationale: The inflammatory phase (days 1–4) involves hemostasis, vasodilation, and phagocytic
activity by neutrophils and macrophages to remove bacteria and debris .
7. Which growth factor is most associated with stimulating fibroblast proliferation?
A. Vascular endothelial growth factor (VEGF)
B. Platelet-derived growth factor (PDGF)
C. Epidermal growth factor (EGF)
D. Transforming growth factor-beta (TGF-β)
Answer: B) Platelet-derived growth factor (PDGF)
Rationale: PDGF is released by platelets during hemostasis and is a potent chemoattractant and
mitogen for fibroblasts, stimulating them to migrate and proliferate .
8. What is the primary advantage of maintaining a moist wound environment?
A. Increased scab formation
B. Enhanced epithelial cell migration
C. Reduced oxygen diffusion to tissues
D. Complete elimination of exudate
Answer: B) Enhanced epithelial cell migration
Rationale: Moist wound environments support epithelial migration, angiogenesis, and autolytic
debridement, accelerating healing. Dry environments promote scab formation, which acts as a
barrier to epithelialization .
, 9. Which nutrient is most critical for collagen synthesis during wound healing?
A. Vitamin C
B. Vitamin K
C. Vitamin B12
D. Carbohydrates
Answer: A) Vitamin C
Rationale: Vitamin C is essential for collagen synthesis, cross-linking, and fibroblast proliferation,
all of which are necessary for tissue repair .
10. The maturation phase of wound healing is characterized by:
A. Platelet aggregation and clot formation
B. Collagen cross-linking and scar remodeling
C. Neutrophil infiltration and phagocytosis
D. Angiogenesis and granulation tissue formation
Answer: B) Collagen cross-linking and scar remodeling
Rationale: The maturation phase (weeks to years) involves type I collagen cross-linking and scar
remodeling, reaching 80% tensile strength by year 1 .
11. Epibole refers to which wound characteristic?
A. Hardened tissue surrounding the wound
B. Rolled or curled wound edges that impede healing
C. New tissue formed during healing
D. Softening of tissue due to moisture
Answer: B) Rolled or curled wound edges that impede healing
Rationale: Epibole occurs when wound edges curl inward, signaling that epithelial cells have
migrated down the sides rather than across the wound bed, effectively stalling healing .
12. What is the primary mechanism of negative pressure wound therapy (NPWT)?
A. Increases bacterial colonization
B. Promotes tissue ischemia
C. Removes exudate and enhances perfusion
D. Promotes scab formation
