Safety & Regulations Flashcards
7 cards from real CLT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Safety & Regulations flashcards as text
Which of the following best describes the principle of selective photothermolysis?
Answer: Targeting a specific chromophore with a wavelength and pulse duration that damages it while sparing surrounding tissue
Selective photothermolysis uses a wavelength preferentially absorbed by the target chromophore and a pulse duration at or below the thermal relaxation time to confine damage.
What is the primary reason that laser warning signs must be posted outside a treatment room during operation?
Answer: To alert and prevent non-protected individuals from entering the laser hazard zone
Laser warning signs protect non-protected personnel from inadvertently entering an area where exposure to hazardous laser radiation is possible.
For which Fitzpatrick skin type is there the HIGHEST risk of post-inflammatory hyperpigmentation (PIH) from aggressive laser settings?
Answer: Type VI
Fitzpatrick Type VI (darkest skin) has the most melanin and is at highest risk for PIH, requiring conservative treatment parameters.
Which of the following is a required element of informed consent for a laser procedure?
Answer: Disclosure of risks, benefits, alternatives, and expected recovery
Valid informed consent must include disclosure of material risks, potential benefits, available alternatives, and the expected recovery or downtime.
A laser emitting at 1064 nm is primarily absorbed by which chromophore?
Answer: Melanin
The 1064 nm Nd:YAG wavelength is primarily absorbed by melanin, making it effective for hair removal in darker skin types and vascular lesions.
What is the correct order of steps when shutting down a laser system at the end of a treatment session?
Answer: Replace lens cap, turn off system, remove key
The lens cap should be placed first to protect optics, then the system powered down, and then the key removed to prevent unauthorized use.
Which government body administers the Radiation Control for Health and Safety Act, under which laser products are regulated in the U.S.?
Answer: Food and Drug Administration (FDA)
The FDA administers the Radiation Control for Health and Safety Act through its Center for Devices and Radiological Health (CDRH), regulating laser product performance standards.