LHR
What are the three wavelengths used for laser hair removal?
755, 800-855, & 1064
RF uses an ________ ______, rather than optical energy.
Electrical charge
While normal healing processes will remove foreign objects from the skin, tattoo pigment particles are permanent because they are ______ to be removed.
Too big
What is a telangiectasia and how is it formed?
Superficial vessels found on the face, caused by trauma
What lasers are best for treating melasma?
Short-pulsed lasers & water chromophore lasers
How much hair growth reduction can a client expect after each LHR treatment?
20-30%
What are the three modes/types of RF?
Monopolar, bipolar, multipolar
Tattoo removal removes the ink in the skin using not only optical energy, but _________ reactions as well.
Photoacoustic
Describe Poikiloderma of Civatte.
Mottled red and/or brown erythema caused by chronic sun exposure. Commonly found on face, neck, and dec.
What are the ABCDEs of melanoma?
A: asymmetrical
B: border
C: color variation
D: diameter
E: evolution
What are some hormonal conditions that would affect hair growth and impact LHR treatment results?
PCOS, hirsutism
A temperature of ___-___C must be maintained for at least ___ minutes in order to induce the body's natural healing process and provide results.
40-45C; 15 minutes
What are the three wavelengths most commonly used for tattoo removal? And what colors of ink do they target?
1064: black, blue, green
785: black, blue, green
532: yellow, red, orange
What wavelengths are commonly used to treat vascular lesions/disorders?
1064 YAG, 500-600 Pulsed Dye, IPL
When treating pigmented lesions, what is our endpoint?
Ashing and then darkening paired with erythema
Using a _____ spot size reduces scatter.
Larger
_______ is the formation of bubbles within a liquid due to sudden pressure change.
TRUE OR FALSE: We can treat the entire circumference of a limb.
FALSE. Doing this will cut off blood flow.
Laser energy is absorbed by _____ and converted into heat, which results in _________ and the vessel walls collapsing.
Blood; coagulation
Actinic keratosis is considered to be the earliest stage of _____ ______.
Skin cancer
How long should a client be off of a topical photosensitizer prior to a LHR treatment?
1 week
What is apoptosis?
Controlled cell death
When treating a tattoo with laser, the target (tattoo) is heated up to _____F, turning the liquid into a _____.
1000F; solid
What colors of veins can we treat? And what size?
What is the cause of seborrheic keratosis?
Cause is unknown