L
Define wavelength (nm)
The distance from the top of the peak to the next peak.
What does LASER stand for?
Light
Stimulate by the
Emission of
Radiation
When treating darker skin you want to use _________?
Lower settings
What is considered a good clinical endpoint?
Mild to moderate histamine reaction (very mild edema and erythema)
Scatter
Transmission
Absorption
Reflection
What is spot size measured in?
In millimeters (mm)
What is the wavelength and chromophore of the Alexandrite?
Alexandrite functions at a 755 nm wavelength and has a high affinity for pigmentation.
Define coherent light.
When photons travel in the same direction in unison and to a specific point
Define collimated light
When photons travel a long distance parallel to each other
Which laser do we use for LHR here at Acaydia?
GentleMax Pro by Candela
Name the 3 light categories of the electromagnetic spectrum.
Ultraviolet, Visible Light, and Infrared
Tattoos PMU
Fake tan and/or sun burned/tanned skin
Metal implants in the tx area
Waxing, tweezing, or electrolysis in the last 6 weeks
Cancer not in remission of at least 1 year
Pregnant or lactating
Cardiac disorders
Impaired immune system
Accutane in the last year
Antibiotics in the last 10 days
Define divergent light
When photons travel in multiple directions and speeds.
True or False The door should be closed and locked during treatment.
False the door should be closed but never locked
Which Fitz is the darkest and usually of African descent?
Fitzpatrick VI
How is the energy of laser measured and what is it called?
Measured in J/cm2 called fluence.
Define polychromatic
A light wave of many colors
How is the rate at which the laser energy is being delivered measured?
Pulse width (ms)
How long should LHR treatments on the face be spaced apart?
4-6 weeks
What year was laser FDA approved?
1997
Define TRT
Thermal Relaxation Time: the amount of time needed for a chromophore to lose more than 50% of heat produced by the laser.
What kind of surface could potentially be harmful to your eyes during laser?
Reflective surface
Define scatter
When tissue other then the target tissue is affected by the laser.
What is the wavelength and chromophore of a Diode?
Diode functions at a 810 nm and has a high affinity for blood and pigment
What is the wavelength and chromophore of the NdYAG?
The NdYAG functions at a 1064 nm and has a high affinity for blood (hemoglobin)