Q: Which of the following equations correctly represents the calculation for total body surface area burned using the Rule of Nines for an adult?

$\text{TBSA} = \text{Sum of percentages for each affected area}$

Question 1

Which of the following cell types in the epidermis is primarily responsible for producing the pigment that protects against UV radiation?

Accepted Answer

Melanocytes

Question 2

A patient presents with jaundice, which is a yellowing of the skin. This condition is most likely due to an accumulation of which substance?

Accepted Answer

Bile pigments

Question 3

Which layer of the skin contains blood vessels and sensory receptors that detect pressure, pain, vibration, and temperature?

Accepted Answer

Reticular layer of the dermis

Question 4

Which of the following is a function of eccrine (merocrine) sweat glands?

Accepted Answer

Regulation of body temperature through evaporative cooling

Question 5

A burn patient is assessed using the Rule of Nines. If the anterior and posterior surfaces of both legs are burned, what percentage of the total body surface area is affected according to this rule?

Accepted Answer

$36\%$

Question 6

Which accessory structure of the integumentary system is composed of keratinized epidermal cells and can provide clues about an individual's overall health?

Accepted Answer

Nails

Question 7

A patient presents with cyanosis, a bluish discoloration of the skin. Which physiological process is most likely impaired?

Accepted Answer

Oxygenation of blood

Question 8

Which layer of the skin is primarily responsible for storing lipids and providing insulation?

Accepted Answer

Hypodermis (subcutaneous layer)

Question 9

Which type of skin cancer arises from the basal cells of the epidermis and is the most common but least likely to metastasize?

Accepted Answer

Basal cell carcinoma

Question 10

Which of the following best describes the difference between thick skin and thin skin?

Accepted Answer

Thick skin has a thicker epidermis and is found on the palms and soles

Question 11

A nurse is caring for an elderly patient with delayed wound healing. Which age-related change in the integumentary system most likely contributes to this condition?

Accepted Answer

Reduced blood flow to the dermis

Question 12

Which of the following is a function of the papillary layer of the dermis?

Accepted Answer

Nourishes and supports the epidermis

Question 13

Which gland type releases its secretion by rupturing the entire cell, as seen in sebaceous glands?

Accepted Answer

Holocrine

Question 14

A patient has a wound that is slow to heal and is prone to infection. Which function of the integumentary system is most compromised?

Accepted Answer

First line of defense against pathogens

Question 15

Which of the following best explains why apocrine sweat glands become active at puberty?

Accepted Answer

They are stimulated by sex hormones

Question 16

Which of the following equations correctly represents the calculation for total body surface area burned using the Rule of Nines for an adult?

Accepted Answer

$	ext{TBSA} = 	ext{Sum of percentages for each affected area}$

Question 17

Which of the following is NOT a function of the integumentary system?

Accepted Answer

Production of red blood cells

Question 18

A patient with a genetic defect in keratin production would most likely experience which of the following symptoms?

Accepted Answer

Fragile skin and nails

Question 19

Which of the following best describes the role of Langerhans cells in the epidermis?

Accepted Answer

Immune response against pathogens

Question 20

A patient presents with clubbing of the fingernails. Which underlying condition is most likely associated with this clinical sign?

Accepted Answer

Chronic hypoxia

The Integumentary System: Structure, Function, and Clinical Relevance

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