STATE BOARD PRACTICE
QUESTIONS & VERIFIED CORRECT
ANSWERS
What is a round follicle for which hair type? - CORRECT ANSWER Straight hair
Laser stands for? - CORRECT ANSWER L- LIGHT
A- AMPLIFICATION
S- STIMULATED
E- EMISSION
R- RADIATION
What is the distance measured in nanometers between two peaks? - CORRECT
ANSWER Wavelength
Light of only one color and one specific wavelength? - CORRECT ANSWER
Monochromatic
Refraction is also know as? - CORRECT ANSWER Transmission
Newly created photon of light, requires energy equal to? - CORRECT ANSWER
Simulated Emission
Who theorized stimulated emission? - CORRECT ANSWER Albert Einstein
Alexandrite laser is in the visible light spectrum at what wavelength? - CORRECT
ANSWER 755nm
The Nd:YAG laser falls in the invisible light spectrum with a wavelength of what? -
CORRECT ANSWER 1064nm
What type of wave is used in laser hair removal? - CORRECT ANSWER Pulsed wave
A chromophore is also known as what? - CORRECT ANSWER Target
The chromophore absorbs what? - CORRECT ANSWER Energy
Googles are approved by? - CORRECT ANSWER ANSI (American National Standard
Institute)
,Each laser wavelength is what to it's machine? - CORRECT ANSWER Specific
What are the parameters when doing laser hair removal? - CORRECT ANSWER 1.
Wavelength
2. Spot size
3. Fluence
4. Pulse Width
Pulsed lasers allow for selective heating of specific targets, this is also known as? -
CORRECT ANSWER Selective Photothermolysis
Rate/amount of energy delivered within a given area is? - CORRECT ANSWER
Fluence
Increase in fluence equals an increase in what? - CORRECT ANSWER Heat
Length of time the light/energy is in contact with the target that is measured in
milliseconds? - CORRECT ANSWER Pulse width/Pulse duration
If the time of pulse duration is changed from milliseconds to nanoseconds the laser is
what? - CORRECT ANSWER Q Switched
A Q-Switched laser is used for what? - CORRECT ANSWER Tattoo Removal
Which skin types can tolerate an ALEX LASER? - CORRECT ANSWER Fitzpatrick 1-4
Which skin types can tolerate an Nd:YAG laser? - CORRECT ANSWER ALL SKIN
TYPES
Which skin type can only have electrolysis? - CORRECT ANSWER Type 1
If the pulse width is greater than the thermal relaxation time, it results in? - CORRECT
ANSWER A Burn
If the pulse width is less than or equal to the thermal relaxation time, it results in? -
CORRECT ANSWER Perfect hair removal
Larger structures have what thermal relaxation times (TRT)? - CORRECT ANSWER
Longer
Smaller structures have what thermal relaxation times (TRT)? - CORRECT ANSWER
Shorter
What kind of pulse widths protect the epidermis, penetrate deeper, and cool more
slowly? - CORRECT ANSWER Long
, Longer pulse widths are for what skin types? - CORRECT ANSWER Fitzpatrick 4-6
What kind of pulse widths are more aggressive and heat up and cool down quickly? -
CORRECT ANSWER Short
Shorter pulse widths are for what skin type? - CORRECT ANSWER Fitzpatrick 1-3
What percentage of follicles are damaged with each laser treatment? - CORRECT
ANSWER 15%
Long term stable reduction of the growing hairs after a treatment? - CORRECT
ANSWER LASER HAIR REMOVAL
What does the FDA call laser hair removal? - CORRECT ANSWER Permanent hair
reduction
What is the highest setting the skin can tolerate without damage called? - CORRECT
ANSWER Fluence Threshold
What is the highest setting the patient can tolerate without the treatment becoming
impossible? - CORRECT ANSWER Patient Threshold
What is hair density? - CORRECT ANSWER The amount of hair per square centimeter
The higher the hair density, the _________________ the fluence? - CORRECT
ANSWER Lower
What percentage of overlapping do you want when doing laser hair removal? -
CORRECT ANSWER 30%
Darker/tanned skin requires what kind of fluence? - CORRECT ANSWER Lower
What should you never use to clean a patient's skin before laser hair removal? -
CORRECT ANSWER ALCOHOL
Pulse duration is measured in what unit? - CORRECT ANSWER Milliseconds (ms)
Spot size is measured in what unit? - CORRECT ANSWER Millimeters (mm)
Repetition rate is measured in what unit? - CORRECT ANSWER Hertz (Hz)
Who is the grandfather of laser and was the first person to use water to Cool the skin
during laser? - CORRECT ANSWER Rox Anderson
The formula for fluence is? - CORRECT ANSWER Joules = J/cm2