Wavelengths
What are the 3 primary chromophores?
Water, Melanin, Hemoglobin
What angle is required to treat LHR?
90 Degrees
Light skin, Light hair, caucasian, usually burns
Fitz 2 (II)
Laser treatments can not be performed within 1/2 inch of:
Tattoos or permanent cosmetics
IPL stands for what?
Intense Pulsed Light
TRUE OR FALSE: The main function of the pulse duration is to manipulate the intensity of the pulse
TRUE
What device only targets melanin and is powered off of a semiconductor chip?
Diode 800-855
Which hair cycle is the hair optimally damaged in?
Anagen
Very dark brown skin, dark eyes, dark hair, will not burn in the sun
Fitz 6 (VI)
An electrical current treatment is known as:
Radio Frequency
What delivery method creates microthermal treatment zones of damaged tissue?
Fractionated
What is a delivery method of very short pulse durations and is ideal for treating tattoos?
Q-switched
Short wavelengths penetrate ___________ into the tissue than ________ wavelengths?
Shallower, Long
What is a potential side effect of all laser treatments that removes the pigment from the skin?
Hypopigmentation
Caucasian, Very white, freckled, always burns
Fitz 1 (I)
What are ultrasound and Cryolipolisis typically used for?
Permanent fat removal
What are the 4 tissue interactions caused by laser light?
What is Joules/CM2
Fluence
What are two lasers that target water and are used for ablative skin resurfacing?
CO2 and ER:YAG
An adverse reaction to laser treatments are most common on what type of skin?
Tanned or dark
Dark skin, dark hair, African American, pacific islander, does not burn
Fitz 5 (V)
Cellulite condition involves:
Enlargement of fat cells
TRUE OR FALSE: Ablative resurfacing removes layers of the epidermis and the dermis
TRUE
What does collimated mean?
The beam does not diverge
What laser reaches 500-600 nm and are able to treat a range of vascular conditions?
Pulsed Dye
Name 3 things that are required before starting laser treatments (think pre-care and prep):
Skin is not tanned, eye protection for technician and client, cleaned skin
Medium skin, medium hair color, Caucasian, Asian, Mediterranean, Hispanic, Middle eastern or mixed with Caucasian. Sometimes burns but usually tans
Fitz 3 (III)
What is the optimum skin temperature to reach for clinical end point during body contouring, tightening, and cellulite reduction?
40-45 degrees C
What is TRT (Thermal Relaxation Time)?
The time that it takes a target to disperse at least 50% of the heat to surrounding tissue
What does Coherent mean?
The photons travel together as a single unit
What are the best wavelengths (3) used for tattoo removal?
1064 ND:YAG
532 KTP
755 Alexandrite or 785
Skin typing is important for treatment parameter selection when using:
Optical energy
Dark skin, dark hair, Hispanic, American Indian, Asian. Does not burn
Fitz 4 (IV)
What are the 2 combinations of contraindicated conditions and energy types?
Pacemaker/RF
Tanned skin/Optical energy
What is TDT (Thermal Damage Time)?
The amount of time required to thermally damage the entire target with out damaging the surrounding tissue
Laser safety classification is based on what two hazards?
Hazard to both skin and eyes