問題一覧
1
What does laser stand for?
light amplification stimulated emission radiation
2
How long should you wait for patch test with fitz 1-3
24 hours
3
How long do clients need to avoid the sun/sunbeds/self tanning
30 Days
4
How long prior for fitz 4+ for a patch test
48 Hours
5
How many minimum sessions do men need to have
8
6
What does joules mean
energy/heat
7
What does watts mean
power / temp
8
What does MS mean
pulse width / time
9
What does J/CM2 Mean
fluence / energy density
10
What does Hz mean
frequency per second
11
What does wavelength mean
distance light travels
12
What pulse & time does thin hair need
shorter pulse less time
13
What pulse and time does thick hair need
longer pulse more time
14
What percentage does light reflect out
70%
15
What percentage does light reflect when using ultrasound gel
5%
16
Light is absorbed by a ____ in the skin & transformed into ___
chromophore / heat
17
What is chromophore
melanin oxygen water
18
What destructs chromophores
wavelength / pulse duration / energy
19
True or false does thin hair use a more intense energy pulse
true
20
Name 3 adverse side effects
hypo / hyper pigmentation zebra stripes blisters / burns
21
What nanometer is the diode laser
808NM
22
What hair colour is not effective
white red grey
23
How long should hair be on consultation
2mm
24
What can clients do after laser to get hairs out
shave 4 days after
25
What hair stage do you need to be in for laser to work
Anagen
26
How many shots per patch test
3-5
27
How much ultrasound gel is needed
1-2mm
28
When light is made what does it start with
atom
29
What is laser
laser is light that uses a single wavelength that radiates in a parrell beam of light
30
What are wavelengths measures in
nanometres
31
Name 3 charactastics that’s laser has
monochromatic collimated coherent