CDT Dermatological Assessment Methods 3

Question 1

A lesion is described as a 'plaque.' Which of the following best defines this primary skin lesion?

Accepted Answer

A raised, flat-topped lesion greater than 1 cm in diameter

Answer

A plaque is a raised, flat-topped, palpable lesion greater than 1 cm in diameter, often formed by confluence of papules.

Question 2

During a skin assessment, a technician notes 'telangiectasias.' These are best described as:

Accepted Answer

Dilated superficial blood vessels visible through the skin

Answer

Telangiectasias are permanently dilated small superficial blood vessels visible as red or purple linear marks on the skin surface.

Question 3

The Darier sign is elicited by stroking a skin lesion, causing it to urticate (wheal and flare). This sign is diagnostic for:

Accepted Answer

Mastocytosis (urticaria pigmentosa)

Answer

The Darier sign is pathognomonic for mastocytosis; stroking the lesion triggers mast cell degranulation, producing an immediate wheal and flare response.

Question 4

In documenting wound characteristics, the term 'slough' refers to:

Accepted Answer

Yellow or tan moist devitalized tissue in a wound bed

Answer

Slough is moist, yellow, tan, or green devitalized tissue in the wound bed that must be distinguished from healthy granulation tissue.

Question 5

A patient's lesion is described as 'umbilicated.' This means the lesion has:

Accepted Answer

A central dell or pit

Answer

Umbilicated lesions have a central depression or pit, characteristic of molluscum contagiosum and some viral skin infections.

(CDT) Certified Dermatology Tech Practice Test

(CDT) Certified Dermatology Tech Practice Test

CDT Dermatological Assessment Methods 3