Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Aesthetics > Laser Hair Removal > Flashcards

Laser Hair Removal Flashcards

(67 cards)

Start Studying
1
Q

Consulting physician responsibilities

A

Quarterly audits
Write Rx
Adverse situations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

LSO

A

Keep staff trained on safety protocols
Keep machines safe and maintenanced
Can shut down operation if not safe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

LASER

A 
Light
Amplification by the
Stimulated
Emission of
Radiation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Electromagnetic spectrum

A

Arranged by frequency of waves from shortest(fastest, high intensity) to longest(slowest, lower intensity)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Measure of a wavelength?

A

Nanometer (nm) or micron (1/1000 nm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

4 common LHR lasers?

A

694 Ruby
755 Alexandrite
810 Diode
1064 Nd:YAG

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What part of the spectrum is thermal?

A

Infrared IR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

3 Chromosphores

A

Water, hemoglobin, melanin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

LHR Chromosphore

A

Melanin in the hair follicle, treat without targeting the blood or water surrounding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What wavelength targets the water Chromosphore?

A

Er:YAG and CO2, ablative treatments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Stimulated Emission

A

Excited electron absorbs photon, when returning to resting, it emits 2 photons, they all bounce around multiplying

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Laser components

A

2 mirrors, one is partially reflective, light source and laser medium in between

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Coherent light waves

A

Travel in unison

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Laser light properties

A

Monochromatic, collimated, coherent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Visible light properties

A

Polychromatic, divergent, scattered

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What determines Optical Energy?

A

Flouence, spot size and pulse duration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Unit of energy?

A

Joule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Unit of power?

A

Watt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

4 laser properties

A

Absorption, reflection, transmission, scatter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Absorption in LHR

A

Follicle absorbs energy and converts to heat to destroy the follicle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Destroy the target while protecting the surrounding tissue is called…

A

Selective Photothermolysis, non ablative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Thermal Relaxation Time

A

Time it takes for 50% loss of heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Pulse duration for TRT

A

Larger target heats and cools slower, needs longer width, smaller target (fine hair) heats and cools faster, needs shorter width

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Ablative

A

Destroying the epidermis, targeting water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
IPL properties
Full spectrum, non coherent, BBL
26
IPL components
Mirror above light source, filtered to allow the chosen wavelength through
27
Cooling options
``` Cold us gel Chill tip Zimmer Ice packs Cryogenic spray ```
28
Why epidermal cooling?
To protect skin from burning and patient comfort
29
Radio frequency RF
Electric wavelength between two poles to enhance heating of treated target, attracted to the heat from laser
30
RF depth
Half the distance of the nodes
31
Light emissions
Continuous or pulsed
32
Laser emissions
Homogenous or fractionated
33
Pseudofolliculitis barbae
Ingrown hairs
34
Layers of the skin
Epidermis Dermis Hypodermis or subq
35
What layer of the epidermis are the melanocytes in?
Basal layer
36
Types of hair
Vellus - fine, unpigmented | Terminal - course, pigmented
37
Where is melanin in the follicle produced?
Bulb and upper bulge, deepest in anagen phase
38
Types of melanin
Eumelanin - brown, black (our target) | Pheomelanin - red, gold
39
Growth phases of hair
Anagen - active Catagen - transitional Telogen - dormant
40
Body parts with long growth cycles
Back, chest, legs
41
What is safest wavelength for dark skin?
1064, deeper wavelength allows epidermal melanin to stay safe
42
Wet or dry lasers
Use gel or not
43
Tanned patients need which laser?
Nd:YAG, goes deeper to miss the epidermal pigment
44
How can you protect epidermis?
Cooling Decrease flouence Longer pulse width
45
Benefit of a larger spot size?
Speed | Delivers higher effective flouence bc scattered photons stay in the target area
46
Hormonal effects on hair
Male androgen increase size and pigment | Female estrogen decrease size and pigment
47
Pretreatment no nos
``` Sun 2 wks Antibiotics 10 days RetinA 3 days Self tanner 1 wk Waxing tweezing 4 wks Accutane 6 mos Botox 7 days Fillers 2 wks Open skin (herpes, sores, acne, cuts, etc) ```
48
Danger with facial treatment and Nd:YAG?
Need to cover teeth
49
Post care
``` Stay out of sun for 2 wks Use SPF Cool packs and aloe if needed No swimming, sweating, tubbing, sauna No friction No exfoliation for 2 days ```
50
Side effects and complications
``` Erythema Edema Blistering Hypo pigment Hyper pigment Histamine reaction HSV ```
51
Bell curve for results
5-10% poor 80% good 5-10% great
52
Treatment interval and why?
6 weeks apart, hair grows in cycles, at any given time only a fraction of hair is in the active state we are targeting
53
Limitation of treating men's backs?
Low % of anagen hairs and long telegenic phase... Lots of treatments over a long period of time
54
Hormonal conditions?
``` Hirsutism Hypertrichosis Cushing's syndrome Androgenital syndrome PCOS ```
55
How to approach hormonal hurdles?
Will need more treatments, set expectation up front, start with 6 and evaluate results
56
Levels of burn
First degree - epidermal only, no blistering Second degree - dermis injured, blistering Third degree - subq injured
57
He do you know patient is burned?
Lingering heat Grey or ashy appearance after shot Blistering next day
58
What to do for burn?
Have patient come in to take a look or immediate cooling Polysporin or silvadene depending on severity Consulting physician if necessary (2 degree) Photograph Follow up
59
Burns in dark skin?
Do not appear immediately
60
Phases of wound healing?
Inflammatory Proliferative/rebuilding Remodeling
61
What part of the spectrum is LHR laser in?
Near infrared, does not cause blink reflex as it is invisible
62
What class lasers do we use?
Class IV
63
Eye protection
Goggles labeled for the particular wavelength you are working with, ablative lasers do not really harm the eye but we still wear goggles
64
Is suction needed for LHR?
No, the odor is from burnt hair, but doesn't actually produce a smoke plume like ablative treatments
65
Check before treating
Sun Meds Shaven, no wax No topicals
66
What is considered successful treatment series?
85% reduction
67
#1 goal while in room
Safety & Efficacy

Aesthetics (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions