CANS Laser, Light & Energy-Based Therapies — Questions and Answers
Question 1: What is the primary target of laser hair removal treatments?
- Sebaceous gland
- Sweat duct
- Melanin in the hair follicle (Correct answer)
- Collagen fibers
Correct answer: Melanin in the hair follicle
Laser hair removal targets melanin in the hair follicle to selectively damage and reduce hair growth.
Question 2: Which Fitzpatrick skin types are at highest risk for hyperpigmentation after laser treatment?
- Types I-II
- Types III-IV
- Types IV-VI (Correct answer)
- Type I only
Correct answer: Types IV-VI
Fitzpatrick skin types IV-VI are more prone to hyperpigmentation due to higher melanin content in the skin.
Question 3: What is the role of cooling devices in laser treatments?
- Stimulate collagen production
- Increase melanin absorption
- Prevent hyperhidrosis
- Protect the epidermis and minimize discomfort (Correct answer)
Correct answer: Protect the epidermis and minimize discomfort
Cooling devices help protect the epidermis, enhance comfort, and reduce thermal injury during laser procedures.
Question 4: Which energy-based treatment is best suited for improving skin texture and stimulating collagen?
- Cryotherapy
- Laser tattoo removal
- Radiofrequency treatment (Correct answer)
- Microdermabrasion
Correct answer: Radiofrequency treatment
Radiofrequency devices deliver heat to the dermis, which stimulates collagen production and improves skin texture.
Question 5: Which precaution is critical before performing IPL (Intense Pulsed Light) therapy?
- Apply topical retinoids
- Increase vitamin C intake
- Avoid sun exposure and tanning (Correct answer)
- Take aspirin to reduce swelling
Correct answer: Avoid sun exposure and tanning
Avoiding sun exposure and tanning reduces the risk of burns and pigment changes during IPL treatments.
Question 6: What is a potential complication of improperly calibrated laser equipment?
- Increased hydration
- Improved skin elasticity
- Burns or pigmentation changes (Correct answer)
- Reduced sensitivity
Correct answer: Burns or pigmentation changes
Improper settings can result in burns, scarring, or pigmentation changes due to excessive energy delivery.
CANS Laser, Light & Energy-Based Therapies
What is the primary target of laser hair removal treatments?