GRAND CANYON UNIVERSITY · COLLEGE OF NURSING
NSG 100 Exam 3
Practice Question Bank
NCLEX-Style Practice Questions with Rationales
Topics: Skin Integrity, Wound Healing, Nutrition & Related Concepts
Edition 1 · September 2026
Table of Contents
1. Instructions for Use 2
2. Practice Questions with Answers & Rationales — NSG 100 Exam 3 2
NSG 100 · Grand Canyon University Page 1
,NSG 100 EXAM 3 PRACTICE GUIDE INSTRUCTIONS & PRACTICE QUESTIONS
How to Use This Guide
Read each stem, choose your answer, then check the rationale directly below it. The correct
option is marked, and each wrong option is explained so you understand why it's wrong — not
just that it is.
Category: Skin Integrity, Wound Healing & Nutrition
1 Which of the following is a function of the skin?
A Produces red blood cells
B Regulates blood glucose levels
C Protects underlying tissues from microorganisms and trauma
D Filters waste products from the blood
Why C is correct: The skin protects underlying tissues from invasion by microorganisms
and from trauma. This is a primary function of the integumentary system.
A — Red blood cells are produced in the bone marrow, not the skin.
B — Blood glucose regulation is a function of the pancreas and endocrine system.
D — Waste filtration is primarily a function of the kidneys.
,2 The epidermis is best described as which of the following?
A The outermost layer of skin consisting of epithelial cells and melanocytes
B The middle layer of skin composed mainly of connective tissue
C The innermost layer composed of adipose tissue
D The layer containing most hair follicles and sweat glands
Why A is correct: The epidermis is the outermost layer of skin and consists of epithelial
cells and melanocytes.
B — This describes the dermis, not the epidermis.
C — This describes the subcutaneous layer (hypodermis).
D — Hair follicles and sweat glands are found in the dermis, not the epidermis.
3 The dermis is characterized by which of the following features?
A Composed mainly of adipose tissue
B Richly supplied with blood vessels, nerve fibers, and lymphatic vessels
C Consists only of epithelial cells
D Provides minimal support to the epidermis
Why B is correct: The dermis is richly supplied with blood vessels, nerve fibers, and
lymphatic vessels. It also contains most hair follicles and sebaceous and sweat glands.
A — Adipose tissue is found in the subcutaneous layer, not the dermis.
C — The dermis contains connective tissue, collagen, and elastin, not just epithelial cells.
D — The dermis supports and supplies blood to the epidermis.
, 4 The subcutaneous layer (hypodermis) is composed primarily of which tissue?
A Epithelial tissue
B Nervous tissue
C Adipose (fatty) tissue
D Muscle tissue
Why C is correct: The subcutaneous layer is composed mainly of adipose (fatty) tissues and
collagen-rich connective tissues. It separates muscle from skin, stores fat, and conserves
body heat.
A — Epithelial tissue is found in the epidermis.
B — Nervous tissue is present throughout the skin but is not the primary component of the
subcutaneous layer.
D — Muscle tissue is deeper, below the subcutaneous layer.
5 Which of the following is an example of an infectious skin disorder?
A Psoriasis
B Impetigo
C Acne
D Basal cell carcinoma
Why B is correct: Impetigo is a bacterial infectious skin disorder. Other examples include
athlete's foot (fungal), chickenpox (viral), and lice (parasitic).
A — Psoriasis is an inflammatory skin disorder, not infectious.
C — Acne is an inflammatory skin disorder.
D — Basal cell carcinoma is a neoplastic (cancerous) skin disorder.
NSG 100 Exam 3
Practice Question Bank
NCLEX-Style Practice Questions with Rationales
Topics: Skin Integrity, Wound Healing, Nutrition & Related Concepts
Edition 1 · September 2026
Table of Contents
1. Instructions for Use 2
2. Practice Questions with Answers & Rationales — NSG 100 Exam 3 2
NSG 100 · Grand Canyon University Page 1
,NSG 100 EXAM 3 PRACTICE GUIDE INSTRUCTIONS & PRACTICE QUESTIONS
How to Use This Guide
Read each stem, choose your answer, then check the rationale directly below it. The correct
option is marked, and each wrong option is explained so you understand why it's wrong — not
just that it is.
Category: Skin Integrity, Wound Healing & Nutrition
1 Which of the following is a function of the skin?
A Produces red blood cells
B Regulates blood glucose levels
C Protects underlying tissues from microorganisms and trauma
D Filters waste products from the blood
Why C is correct: The skin protects underlying tissues from invasion by microorganisms
and from trauma. This is a primary function of the integumentary system.
A — Red blood cells are produced in the bone marrow, not the skin.
B — Blood glucose regulation is a function of the pancreas and endocrine system.
D — Waste filtration is primarily a function of the kidneys.
,2 The epidermis is best described as which of the following?
A The outermost layer of skin consisting of epithelial cells and melanocytes
B The middle layer of skin composed mainly of connective tissue
C The innermost layer composed of adipose tissue
D The layer containing most hair follicles and sweat glands
Why A is correct: The epidermis is the outermost layer of skin and consists of epithelial
cells and melanocytes.
B — This describes the dermis, not the epidermis.
C — This describes the subcutaneous layer (hypodermis).
D — Hair follicles and sweat glands are found in the dermis, not the epidermis.
3 The dermis is characterized by which of the following features?
A Composed mainly of adipose tissue
B Richly supplied with blood vessels, nerve fibers, and lymphatic vessels
C Consists only of epithelial cells
D Provides minimal support to the epidermis
Why B is correct: The dermis is richly supplied with blood vessels, nerve fibers, and
lymphatic vessels. It also contains most hair follicles and sebaceous and sweat glands.
A — Adipose tissue is found in the subcutaneous layer, not the dermis.
C — The dermis contains connective tissue, collagen, and elastin, not just epithelial cells.
D — The dermis supports and supplies blood to the epidermis.
, 4 The subcutaneous layer (hypodermis) is composed primarily of which tissue?
A Epithelial tissue
B Nervous tissue
C Adipose (fatty) tissue
D Muscle tissue
Why C is correct: The subcutaneous layer is composed mainly of adipose (fatty) tissues and
collagen-rich connective tissues. It separates muscle from skin, stores fat, and conserves
body heat.
A — Epithelial tissue is found in the epidermis.
B — Nervous tissue is present throughout the skin but is not the primary component of the
subcutaneous layer.
D — Muscle tissue is deeper, below the subcutaneous layer.
5 Which of the following is an example of an infectious skin disorder?
A Psoriasis
B Impetigo
C Acne
D Basal cell carcinoma
Why B is correct: Impetigo is a bacterial infectious skin disorder. Other examples include
athlete's foot (fungal), chickenpox (viral), and lice (parasitic).
A — Psoriasis is an inflammatory skin disorder, not infectious.
C — Acne is an inflammatory skin disorder.
D — Basal cell carcinoma is a neoplastic (cancerous) skin disorder.
