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FINALS > Non Ablative laser > Flashcards

Non Ablative laser Flashcards

1
Q

Gold standard device for port wine stains

A

Flashlamp-pumped pulsed dye laser (now most commonly used at wavelength 595 nm)

Excited rhodamine dye - produces YELLOW light

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2
Q

What non ablative laser is used to treat discrete telangiectasis and facial hypervascularity

A

532 nm - wavelength KTP laser

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3
Q

Wavelength of Nd:YAG laser used for facial vessels, spider veins of legs, hair removal

A

1064 nm

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4
Q

Wavelength of diode for hair removal

A

810 nm

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5
Q

Wavelength used in alexandrite laser systems

A

755 nm

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6
Q

Wavelegth of ruby laser

A

694 nm

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7
Q

Hypervascular poikiloderma of Civatte responds well to?

A

Pulsed dye Laser

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8
Q

Laser for benign pigmented lesions (lentigines)?

A

Q-Switched of various wavelength

(QS-alexandrite, QS-Ruby, QS-Nd:YAG)

(+) white frosting post procedure - intraepidermal water vapor

Turns dark after:
5 days - facial lesions
1-2 weeks - trunk and extremities

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9
Q

Laser for cafe-au-lait and nevus of Becker

A

Q-switched laser of various wavelengths

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10
Q

Laser for nevus of ota and ito

A

Q-switched

*given the depth of pigmentation, deeper penetrating laser must be used

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11
Q

How does laser work to remove hair?

A

By injuring the follicular unit following absorption of energy by its melanin-containing structures

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12
Q

Complication of photoepilation unique to laser hair removal

A

Paradoxical new hair growth in the area surrounding the treatment site.

Most commonly seen in Fitzpatrick Skin Type III or IV

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13
Q

Most effective for hair removal

A

Long pulsed Alexandrite and Diode

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14
Q

How does Q-switched laser work in removing tattoo?

A

QS devices force exogenous materials within the lysosomes to be expelled in the extracellular space

Black and dark blue ink - QS Nd:YAG laser, QS Alexandrite, QS Ruby Laser

Blue and green inks - QS Alexandrite, QS ruby

Red ink - QS Nd:YAG (532 nm)

Purple and orange ink - Nd:YAG 532 nm, Alexandrite

Yellow ink - may respond to 532 nm

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15
Q

Can speed re-epithelialization of ulcerated IH

A

PDL (595 nm)

*can also be used in striae rubra; hypervascular scars

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16
Q

Chromophore of Carbon Dioxide Laser

A

Water

17
Q

Chromophore of Erbium:YAG (pulsed) laser

A

Water

18
Q

Lasers effective for Nevus of Ota and Ito

A

QS Ruby, Alexandrite, and ND:Yag lasers

19
Q

Wavelength of ND:Yag that can be used for darker skin tones (laser hair removal)

A

1064-nm

20
Q

Tattoo removal: Black and Dark Blue Ink

A

QS Nd:YAG (1064-nm)
QS Alexandrite (755-nm)
QS Ruby (694-nm)

21
Q

Tattoo removal: Blue and Green Ink

A

QS Alexandrite
QS Ruby
Picosecond-based devices

22
Q

Tattoo removal: Red Ink

A

Frequency-doubled QS Nd:YAG (532-nm) laser

23
Q

Tattoo removal: Purple and Orange Ink

A

532-nm
755-nm

24
Q

Tattoo removal: Yellow Ink

A

QS 532-nm laser

FINALS (3 decks)

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