Questions And Answers 2025
Save
Exposure to —- wavelengths of light is considered to be potentially hazardous. - Answer - Ultraviolet
The light energy from laser light is "in phase" which means it: - Answer - All of the light waves are
traveling in the same direction in unison
Which of these is NOT one of the tissue effects of exposing skin to a laser treatment? - Answer -
Regression
Vascular lasers: - Answer - Seek out blood or oxyhemoglobin
The term "irradiance" refers to: - Answer - Power density
Which method of cooling involves using a cold sapphire window on the hand piece to cool the epidermis
before, during, and after each laser pulse? - Answer - Chilled tip cooling
The laser—generating machines used by estheticians are considered——by the FDA - Answer - Class 2
The role of the laser safety officer includes: - Answer - All answers (hazard response in emergency
situations, approving all laser signs and labels, implementing control measures to reduce the risk of
injury)
Under the ANSI classification system, if a device is potentially hazardous if viewed direction,it is
considered a —- device. - Answer - Class 3
What is the most vulnerable organ for exposure to a direct, scattered, or reflected beam of light? -
Answer - Eye
, What does LGAC refer to? - Answer - Laser smoke
Lasers have the potential to ignite: - Answer - All answers (cotton sponges, plastic, and alcohol-based
cleansing solutions)
All preventive maintenance, system upgrades, and service calls to correct fault codes or malfunctions
need to be documented in: - Answer - The lasers service manual
ANSI and OSHA dictate that a laser safety audit of the facility be performed: - Answer - Once a year
The longer the wavelength: - Answer - The deeper the penetration
How long after a laser treatment on a pigmented lesion does the crusted lesion flake off? - Answer - 7-10
days
Which of these is NOT a reported risk associated with traditional treatments involving lasers such as the
CO2 and Erbium lasers? - Answer - Infection
Photomechanical laser treatment delivers a pulsed beam of light that raises the tissue temperature by
—— nanoseconds. - Answer - 300 degree Celsius
How long after a laser tattoo removal does the treated site heal and clear of fragmented particles? -
Answer - Over 3 weeks
A Q-switched 755 nm-Alexandrite laser affects all BUT which of these tattoo dye colors? - Answer - Red
A diode laser CANNOT be used for: - Answer - Tattoo removal
Cool touch lasers are NOT used for: - Answer - Pigmented lesions