CLT Hair Removal Laser Procedures 2

Question 1

Which laser wavelength is considered the gold standard for hair removal in patients with darker skin tones (Fitzpatrick IV-VI)?

Accepted Answer

1064 nm Nd:YAG

Answer

The 1064 nm Nd:YAG laser is preferred for darker skin types because its longer wavelength penetrates deeper and is less absorbed by epidermal melanin, reducing burn risk.

Question 2

A patient reports that their treated hair is still shedding two weeks after a laser hair removal session. What is the correct response?

Accepted Answer

This is a normal post-treatment process called exfoliation of treated follicles

Answer

Shedding of treated hairs 1–3 weeks post-treatment is a normal and expected sign that the follicles were successfully targeted.

Question 3

What is the primary reason treatment intervals for laser hair removal are spaced 4–8 weeks apart for the face and 8–12 weeks for the body?

Accepted Answer

To match the anagen (active growth) phase cycle of hair in different body regions

Answer

Laser hair removal is only effective during the anagen phase, and hair cycles vary by location, requiring treatment intervals aligned with regional growth cycles.

Question 4

Which cooling method is integrated directly into the handpiece tip to protect the epidermis during laser hair removal?

Accepted Answer

Contact cooling (sapphire tip)

Answer

Contact cooling via a sapphire-tipped handpiece cools the skin surface immediately before and during laser pulse delivery to protect the epidermis.

Question 5

A patient with a Fitzpatrick skin type III wants laser hair removal on their upper lip. Which parameter adjustment is most appropriate compared to treating the same area on a type I patient?

Accepted Answer

Decrease fluence and increase pulse duration

Answer

Darker skin types require lower fluence and longer pulse durations to reduce epidermal heating while still targeting the hair follicle safely.

(CLT) Certified Laser Technician Practice Test

(CLT) Certified Laser Technician Practice Test

CLT Hair Removal Laser Procedures 2