CLT Tattoo Removal Procedures 2

Question 1

Which laser wavelength is BEST suited for targeting red tattoo ink?

Accepted Answer

532nm KTP (frequency-doubled Nd:YAG)

Answer

Red ink absorbs green light (532nm) most effectively because complementary color absorption means the green wavelength is selectively taken up by red pigment.

Question 2

What is the PRIMARY mechanism by which Q-switched lasers fragment tattoo ink?

Accepted Answer

Photomechanical (photoacoustic) shock waves that shatter ink particles

Answer

Q-switched lasers deliver energy in nanosecond pulses that create photoacoustic shock waves, mechanically shattering ink particles into smaller fragments the immune system can clear.

Question 3

Paradoxical darkening after laser tattoo removal is MOST commonly associated with which ink color?

Accepted Answer

White or flesh-toned

Answer

White and flesh-toned inks containing titanium dioxide or iron oxides can oxidize upon laser exposure, turning dark or gray—a reaction called paradoxical darkening.

Question 4

Which Fitzpatrick skin type group carries the HIGHEST risk of post-inflammatory hyperpigmentation (PIH) following tattoo removal?

Accepted Answer

Types IV–VI

Answer

Darker skin types (IV–VI) have more reactive melanocytes that respond strongly to laser-induced inflammation, significantly increasing PIH risk.

Question 5

Which factor in the Kirby-Desai scale most dramatically increases the predicted number of removal sessions?

Accepted Answer

Layering (cover-up tattoos)

Answer

Layering or cover-up tattoos stack multiple ink layers, exponentially increasing the total pigment load and number of sessions required for clearance.

(CLT) Certified Laser Technician Practice Test

(CLT) Certified Laser Technician Practice Test

CLT Tattoo Removal Procedures 2