CDT Patient Education & Counseling 2 — Questions and Answers
Question 1: A patient with newly diagnosed psoriasis asks why their skin cells are turning over so rapidly. Which explanation is most accurate?
- The immune system triggers abnormal signals that accelerate keratinocyte proliferation (Correct answer)
- A bacterial infection causes excess cell division in the epidermis
- Excessive sun exposure destroys normal cells, triggering replacement
- Hormonal imbalances reduce the normal cell death cycle
Correct answer: The immune system triggers abnormal signals that accelerate keratinocyte proliferation
Psoriasis is an immune-mediated condition in which inflammatory signals cause keratinocytes to proliferate far faster than normal.
Question 2: When counseling a patient about using a topical retinoid for the first time, which side effect should you specifically warn them to expect in the first 2–4 weeks?
- Permanent skin darkening
- Retinoid dermatitis (dryness, peeling, redness) (Correct answer)
- Immediate improvement with no irritation
- Systemic vitamin A toxicity
Correct answer: Retinoid dermatitis (dryness, peeling, redness)
Retinoid dermatitis — dryness, peeling, and redness — is a common and expected initial reaction that typically subsides with continued use.
Question 3: A patient on isotretinoin asks if they can get a wax hair removal treatment. The correct response is:
- Waxing is safe as long as it is done gently
- Waxing should be avoided due to increased skin fragility and risk of skin lifting (Correct answer)
- Waxing is only contraindicated on the face, not the body
- Waxing is permitted after the first month of therapy
Correct answer: Waxing should be avoided due to increased skin fragility and risk of skin lifting
Isotretinoin causes skin fragility and slows healing, making waxing likely to remove layers of skin and cause wounds.
Question 4: Which statement best describes the appropriate sun protection counseling for a patient using hydroquinone for hyperpigmentation?
- Sunscreen is optional because hydroquinone has built-in UV filters
- Daily broad-spectrum SPF 30+ sunscreen is essential to prevent re-darkening (Correct answer)
- Sun exposure accelerates the bleaching effect of hydroquinone
- Avoid sunscreen because it neutralizes hydroquinone
Correct answer: Daily broad-spectrum SPF 30+ sunscreen is essential to prevent re-darkening
UV exposure stimulates melanocytes and will counteract hydroquinone's lightening effect, making daily sunscreen non-negotiable.
Question 5: A parent asks how to recognize signs of an allergic contact dermatitis reaction versus an irritant contact dermatitis reaction in their child. Which characteristic is more typical of allergic contact dermatitis?
- Immediate burning at the site of contact
- Delayed onset (24–72 hours) after exposure to the allergen (Correct answer)
- Reaction confined strictly to the area of contact with no spread
- Caused by direct tissue damage from the substance
Correct answer: Delayed onset (24–72 hours) after exposure to the allergen
Allergic contact dermatitis is a Type IV delayed hypersensitivity reaction that typically appears 24–72 hours after allergen exposure.
Question 6: When educating a patient about proper skin care after a chemical peel, which instruction is most critical?
- Resume exfoliation with a scrub after 48 hours to remove peeling skin
- Apply ice packs directly to the skin every hour to reduce swelling
- Avoid picking or peeling flaking skin and use gentle moisturizer (Correct answer)
- Use a tanning bed to even out uneven pigmentation during healing
Correct answer: Avoid picking or peeling flaking skin and use gentle moisturizer
Picking at post-peel skin can cause scarring and infection; gentle moisture support allows safe, natural exfoliation.
Question 7: A patient asks what the ABCDE rule is used for. The dermatology tech should explain it is used to:
- Classify the severity of acne lesions
- Evaluate moles and skin lesions for potential melanoma warning signs (Correct answer)
- Grade the depth of a burn injury
- Stage rosacea progression
Correct answer: Evaluate moles and skin lesions for potential melanoma warning signs
The ABCDE rule (Asymmetry, Border, Color, Diameter, Evolution) guides patients and clinicians in identifying suspicious pigmented lesions.
CDT Patient Education & Counseling 2
A patient with newly diagnosed psoriasis asks why their skin cells are turning over so rapidly.
Which explanation is most accurate?