CLT Laser Technology & Equipment 2

Question 1

Which laser wavelength is most specifically absorbed by oxyhemoglobin, making it ideal for treating vascular lesions?

Accepted Answer

532 nm (KTP)

Answer

The 532 nm KTP laser wavelength corresponds to a peak absorption band of oxyhemoglobin, making it highly effective for vascular lesion treatments.

Question 2

What does the term 'fluence' refer to in laser therapy?

Accepted Answer

Energy delivered per unit area (J/cm²)

Answer

Fluence, measured in J/cm², describes the energy density delivered to a target tissue and is a critical parameter for achieving therapeutic outcomes.

Question 3

A diode laser used for hair removal most commonly operates at which wavelength range?

Accepted Answer

800–810 nm

Answer

Diode lasers for hair removal typically emit at 800–810 nm, a wavelength with good melanin absorption and deeper dermal penetration than shorter wavelengths.

Question 4

Which component of a laser system is responsible for providing the energy that excites the gain medium?

Accepted Answer

Pump source

Answer

The pump source (e.g., flashlamp or diode array) supplies energy to excite electrons in the gain medium to higher energy states necessary for lasing.

Question 5

What is the primary purpose of a Q-switch in a laser system?

Accepted Answer

To produce very short, high-peak-power pulses

Answer

A Q-switch allows energy to build up in the gain medium and then releases it in an extremely brief, high-peak-power pulse ideal for tattoo and pigment removal.

(CLT) Certified Laser Therapist Practice Test

(CLT) Certified Laser Therapist Practice Test

CLT Laser Technology & Equipment 2