Practice Test Geeks(CLT) Certified Laser Technician Practice Test
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Skin Rejuvenation & Resurfacing Flashcards

7 cards from real CLT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Skin Rejuvenation & Resurfacing flashcards as text

  1. Post-inflammatory hyperpigmentation (PIH) following laser resurfacing is best managed initially with:

    Answer: Strict sun avoidance and broad-spectrum SPF 30+ sunscreen

    Sun avoidance and SPF protection are the first-line interventions because UV exposure significantly worsens PIH after resurfacing.

  2. A laser resurfacing patient develops milia (small white cysts) during healing. These are most likely caused by:

    Answer: Occlusive wound care products trapping keratin

    Occlusive emollients and ointments used post-resurfacing can trap keratin and sebum, leading to milia formation in healing skin.

  3. When comparing CO2 laser to Er:YAG for full-face resurfacing, which statement is most accurate?

    Answer: CO2 produces greater hemostasis and collagen tightening but longer downtime

    CO2's higher thermal effect provides better coagulation and collagen contraction but results in significantly more downtime than Er:YAG.

  4. The 'rule of 30' in laser resurfacing refers to the principle that treatment depths exceeding approximately 30% of the dermis:

    Answer: Risk delayed healing and scarring

    Resurfacing deeper than the superficial 30% of dermis significantly increases the risk of scarring due to destruction of adnexal structures needed for re-epithelialization.

  5. Which test spot strategy is recommended when treating an unknown or reactive skin type with ablative lasers?

    Answer: Treat a small inconspicuous area and evaluate healing at 4–6 weeks

    A test spot in a hidden area allows the clinician to assess individual healing response, pigmentation reaction, and risk before full treatment.

  6. Smoke plume generated during ablative laser resurfacing is hazardous primarily because it contains:

    Answer: Viable viral particles and carcinogenic byproducts

    Laser plume contains viable viruses (including HPV), bacteria, and mutagenic chemical byproducts requiring high-efficiency smoke evacuators and appropriate masks.

  7. A patient undergoing non-ablative fractional resurfacing with a 1,550 nm laser reports pinpoint bleeding at several treatment zones. This indicates:

    Answer: Over-treatment with excessive fluence or density

    Pinpoint bleeding during non-ablative fractional treatment signals excessive fluence or density causing unintended ablation, risking PIH and scarring.