CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+ 2026
SKIN ANATOMY (Questions 1–75)
1. Which layer of the epidermis is responsible for continuous cell renewal and contains
melanocytes?
A) Stratum corneum
B) Stratum lucidum
C) Stratum basale
D) Stratum granulosum
Correct Answer: C) Stratum basale
Rationale: The stratum basale (germinativum) is the deepest epidermal layer where
keratinocytes divide and melanocytes reside.
2. Which protein provides tensile strength and prevents skin tearing under mechanical stress?
A) Elastin
B) Keratin
C) Collagen type I
D) Fibrillin
Correct Answer: C) Collagen type I
Rationale: Collagen type I makes up 80–90% of dermal collagen, providing tensile strength.
Elastin provides recoil.
3. A patient has a burn that destroys the epidermis and entire dermis but spares subcutaneous
fat. This is a:
A) Superficial partial-thickness burn
B) Deep partial-thickness burn
C) Full-thickness burn
D) Subcutaneous burn
,Correct Answer: C) Full-thickness burn
Rationale: Full-thickness injuries involve epidermis and entire dermis; sensation is lost because
nerve endings are destroyed.
4. Which cells in the stratum spinosum act as antigen-presenting cells?
A) Merkel cells
B) Langerhans cells
C) Melanocytes
D) Keratinocytes
Correct Answer: B) Langerhans cells
Rationale: Langerhans cells are dendritic cells that capture antigens and migrate to lymph
nodes to initiate immune responses.
5. The dermis is primarily derived from which embryonic layer?
A) Ectoderm
B) Mesoderm
C) Endoderm
D) Neural crest
Correct Answer: B) Mesoderm
Rationale: Dermis arises from mesoderm; epidermis from ectoderm.
(Questions 6–75 continue in same format covering: stratum lucidum, eccrine vs apocrine glands,
basement membrane zone, fibroblasts, mast cells, wound healing phases, growth factors, etc.)
PRESSURE INJURY STAGING (Questions 76–175)
76. A patient has intact skin with localized non-blanchable erythema over the sacrum. What is
the correct stage?
A) Stage 1 pressure injury
B) Deep tissue pressure injury
C) Stage 2 pressure injury
D) Unstageable pressure injury
,Correct Answer: A) Stage 1 pressure injury
Rationale: Intact skin with non-blanchable erythema defines Stage 1. Blanchable redness is not
a pressure injury.
77. Which of the following describes a Stage 2 pressure injury?
A) Full-thickness skin loss with visible fat
B) Partial-thickness loss of epidermis and/or dermis presenting as an open ulcer or
intact/ruptured serum-filled blister
C) Obscured full-thickness skin loss due to slough or eschar
D) Intact skin with purple discoloration
Correct Answer: B) Partial-thickness loss of epidermis and/or dermis presenting as an open
ulcer or intact/ruptured serum-filled blister
Rationale: Stage 2 does not include adipose tissue, granulation tissue, slough, or eschar.
78. A patient has a pressure injury over the heel with dark maroon discoloration and intact skin.
What is the stage?
A) Stage 1
B) Stage 2
C) Stage 3
D) Deep tissue pressure injury (DTPI)
Correct Answer: D) Deep tissue pressure injury (DTPI)
Rationale: DTPI presents as intact or non-intact skin with persistent non-blanchable deep red,
maroon, or purple discoloration from underlying soft tissue damage.
79. A full-thickness pressure injury on the ischium has exposed muscle but no bone visible.
Slough covers 30% of the wound bed. What stage?
A) Stage 3
B) Stage 4
C) Unstageable
D) DTPI
Correct Answer: A) Stage 3
Rationale: Full-thickness loss with exposed muscle but no bone/tendon = Stage 3. Stage 4
involves bone, tendon, or ligament.
, 80. A pressure injury is covered completely by black, hard eschar. What is the correct staging?
A) Stage 4
B) Stage 3
C) Unstageable
D) DTPI
Correct Answer: C) Unstageable
Rationale: Unstageable if base is obscured by slough or eschar. After debridement, true stage
becomes apparent.
81. Which stage pressure injury may have undermining and tunneling?
A) Stage 2 only
B) Stage 3 and Stage 4
C) DTPI only
D) Stage 1 only
Correct Answer: B) Stage 3 and Stage 4
Rationale: Full-thickness injuries (Stage 3/4) can have undermining/tunneling. Stage 2 is partial-
thickness without.
82. A patient has a suspected DTPI on the buttock that now has a thin blister over a dark wound
bed. This is:
A) Now a Stage 2
B) Still a DTPI
C) Now a Stage 3
D) Unstageable
Correct Answer: B) Still a DTPI
Rationale: DTPI may evolve rapidly to expose deeper tissue but retains DTPI classification
initially.
*(Questions 83–175 continue with scenarios on: mucosal pressure injury, medical device-
related pressure injury, staging in darkly pigmented skin, differentiation from moisture-
associated skin damage (MASD), etc.)*