Junior Laser pre test Flashcards
(35 cards)
What ter refers to the vaporization, cutting, or removal of a portion of the epidermis and or dermis
ablation
What do photons do ?
travel at the speed of light in the form of a wave
What term refers to light energy that is “in phase”
coherent light
What aspect of a laser determines the type of chromophore with which the light will react ?
color
What is not on of the common chomophores in the body ?
lymph
What is not one of the the four tissue effects of lasers?
collection
What type of surface poses the greatest potential saftey hazard when using lasers?
flat and smooth
What is the most commonly reported hazard for those working with laser devices?
eye injuries
What are lasers usually named in reference to ?
their medium
What ter refers tot he energy of a pulsed laser beam ?
fluence
Thermal relaxation time is tha amount of time necessary for a chromophore to lose ——- percent of the heat produced by the laser.
more than 50
What unit of measurement is used to measure energy fluence in pulsed lasers ?
joule
what term refers to the rate of energy being delivered to tisssue by a laser light source ?
power density
what body determines who can use a specific type of radiation-emitting electronic device ?
state regulatory agency
What term is used to refer to the entire laser apparatus used in health care facility ?
health care laser system (HCLS)
What statement about the door to the laser room is correct ?
it should be closed but unlocked whenever the laser is in use
what effect can the lens in the eye have on a laser’s energy ?
magnify its intensity by as much as 100,000 times
Most laser eyewear has an optical density level of ______ for visible and infrared wavelengths of light .
4 to 8
what statement about operating laser equipment is correct
you should document all problems with the device in your service records
What should clients do during laser treatments to help prevent a fire ?
refrain from placing anything between the laser device and area of treatment
What is not on the of the administrative practices mandated by ANSI
conducting monthly competency skills checks of the laser trained staff
what happens to cells when they undergo a photothermal tissue reaction
they are destroyed
what is not one of the purposes for which CO2 and ER; YAG lasers were traditionally used
hair removal
what is the average surface coverage per treatment when using a fraxel laser to treat photoaging or acne scarring
20 percent
