True. Keratin is the tough structural protein that makes up hair and nails and is also found in the outer layer of the skin.
Category: Skin Structure
Question 2
The dermis is the fatty layer that cushions the underlying organs.
Correct Answer
False
False. The hypodermis, the deepest layer made of fat and areolar tissue, cushions the organs. The dermis is the connective tissue layer that holds hair roots and glands.
Category: Skin Structure
Question 3
Sebaceous glands cool the body by secreting salt and water.
Correct Answer
False
False. Sweat glands cool the body with salt and water. Sebaceous glands secrete sebum, which keeps the skin soft and reduces water loss.
Category: Skin Structure
Question 4
Atopic dermatitis commonly appears where the joints flex, such as behind the knees and inside the elbows.
Correct Answer
True
True. Eczema often affects flexural areas such as the backs of the knees, the inner elbows, the wrists and the ankles, although it can appear anywhere.
Category: Inflammatory Skin Disorders
Question 5
Lukewarm rather than hot water is used for bathing in atopic dermatitis because hot water dries and irritates the skin.
Correct Answer
True
True. Hot water strips natural oils and can worsen itching, so patients use short, lukewarm baths or showers and then apply a moisturizer to hold water in the skin.
Category: Inflammatory Skin Disorders
Question 6
A superficial burn damages both the epidermis and the dermis and forms blisters.
Correct Answer
False
False. A superficial burn involves only the epidermis and is red, dry and painful without blisters. Blistering indicates a partial-thickness burn that reaches the dermis.
Category: Burn Assessment
Question 7
A patient with an electrical burn needs ECG monitoring because the current can disturb the heart's rhythm.
Correct Answer
True
True. Electrical current passing through the body can cause dysrhythmias, so a baseline ECG and continuous cardiac monitoring are part of care.
Category: Burn Assessment
Question 8
When a burned patient has inhaled smoke, impaired gas exchange takes priority over impaired skin integrity.
Correct Answer
True
True. Airway and breathing problems threaten life faster than skin damage, so gas exchange becomes the priority when smoke inhalation is present.
Category: Burn Assessment
Question 9
Applying ice directly to a fresh burn is the preferred way to cool it.
Correct Answer
False
False. Small burns are cooled with tap water or saline. Ice applied directly can deepen tissue injury.
Category: Burn Care
Question 10
Jewelry and clothing near a burn are removed early in care.
Correct Answer
True
True. Burned tissue swells, and rings, bracelets or tight clothing can trap heat and constrict circulation, so they are removed early.
Category: Burn Care
Question 11
Toxic epidermal necrolysis is a thermal burn caused by contact with hot liquids.
Correct Answer
False
False. Toxic epidermal necrolysis is a severe skin reaction, most often triggered by medications. It resembles a partial-thickness burn and is often treated in a burn unit, but it is not a thermal injury.
Category: Burn Care
Question 12
The itching of scabies is often worse at night.
Correct Answer
True
True. Scabies causes intense itching that typically worsens at night, along with red papules and thin, scaly lines in areas such as the finger webs, wrists and belt line.
Category: Skin Infections
Question 13
Ringworm is an infection caused by a parasitic worm.
Correct Answer
False
False. Ringworm is a fungal skin infection that forms round, scaly patches with raised borders and central clearing. No worm is involved.
Category: Skin Infections
Question 14
Patients with lice are taught not to share combs, hats, towels or other personal items.
Correct Answer
True
True. Lice spread easily through close contact and shared items, so patients avoid sharing personal belongings, wash towels and bedding in hot water, and tell close contacts so they can be checked and treated.
Category: Skin Infections
Question 15
Fungal skin infections thrive in dry, cool areas of the body.
Correct Answer
False
False. Fungal infections such as candidiasis and athlete's foot thrive in warm, moist areas such as skin folds, the feet and the genitals.
Category: Skin Infections
Question 16
Squamous cell carcinoma can be preceded by actinic keratosis.
Correct Answer
True
True. Actinic keratosis, a rough, scaly patch caused by sun damage, can progress to squamous cell carcinoma, so sun protection and skin checks are taught.
Category: Skin Tumors and Procedures
Question 17
Common skin warts are caused by a fungal infection.
Correct Answer
False
False. Warts, or verrucae, are caused by the human papillomavirus. They are usually painless, although plantar warts can hurt with friction, and many resolve without treatment.
Category: Skin Tumors and Procedures
Question 18
A cherry angioma is a benign cluster of small blood vessels that can bleed if it is injured.
Correct Answer
True
True. Cherry angiomas are red, dome-shaped, harmless vascular lesions. Trauma can make them bleed, and they can be removed with electrocautery, cryotherapy or laser.
Category: Skin Tumors and Procedures
Question 19
Acne results mainly from a lack of sebum in the skin.
Correct Answer
False
False. Androgens increase sebum production, and excess sebum, extra keratinocytes and bacterial colonization together plug pores and cause inflammation.
Category: Inflammatory Skin Disorders
Question 20
Seborrheic dermatitis develops mainly in areas of skin with few oil glands.
Correct Answer
False
False. Seborrheic dermatitis affects areas rich in sebaceous glands, such as the scalp, face and skin folds.
Category: Inflammatory Skin Disorders