CLS CLS Contraindications & Adverse Events Management 2

Question 1

Post-inflammatory hyperpigmentation (PIH) after laser treatment is most common in which Fitzpatrick skin types?

Accepted Answer

Fitzpatrick Types IV, V, and VI

Answer

PIH is significantly more common in darker Fitzpatrick skin types (IV–VI) because higher baseline melanin content makes melanocytes more reactive to laser-induced inflammation.

Question 2

Which of the following is a relative contraindication (not absolute) for laser treatment?

Accepted Answer

Pregnancy

Answer

Pregnancy is a relative contraindication because while risks are not fully established, treatment is generally deferred until after delivery; absolute contraindications carry known definitive risks.

Question 3

How should a CLS manage a client who develops hypopigmentation (loss of skin color) following laser treatment?

Accepted Answer

Document the finding, reassure the client, and refer to a physician for evaluation

Answer

Hypopigmentation should be documented and the client referred to a physician for evaluation, as it may indicate permanent melanocyte damage requiring specialist management.

Question 4

Which eye hazard is the primary safety concern when using Nd:YAG lasers near the periorbital area?

Accepted Answer

Retinal damage from penetrating 1064 nm radiation

Answer

Nd:YAG 1064 nm radiation is transmitted through the cornea and lens to reach the retina, where it can cause permanent retinal damage if proper eye protection is not used.

Question 5

A client reports intense itching and urticaria (hives) that developed within minutes of beginning laser treatment. What should the CLS do first?

Accepted Answer

Stop treatment and assess for signs of allergic reaction or anaphylaxis

Answer

Rapid-onset urticaria can be a sign of systemic allergic reaction or anaphylaxis; treatment must stop immediately and the client must be assessed for emergency intervention.

CLS - Certified Laser Specialist Practice Test

CLS - Certified Laser Specialist Practice Test

CLS CLS Contraindications & Adverse Events Management 2