Practice Test Geeks(CLS) Certified Lubrication Specialist Practice Test
← All CLS Flashcard Decks

Vascular Lesion Treatment Flashcards

7 cards from real CLS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Vascular Lesion Treatment flashcards as text

  1. What is the primary chromophore targeted during laser treatment of vascular lesions?

    Answer: Oxyhemoglobin

    Oxyhemoglobin in red blood cells selectively absorbs laser energy, causing thermal destruction of the target blood vessel while sparing surrounding tissue.

  2. Which wavelength is most closely associated with the original pulsed dye laser (PDL) used for vascular lesion treatment?

    Answer: 585 nm

    The PDL was originally developed at 585 nm, which closely matches the 577 nm oxyhemoglobin absorption peak, making it highly selective for vascular lesions.

  3. What clinical endpoint indicates adequate PDL treatment of a port wine stain?

    Answer: Purpura (bruising)

    Purpura is the expected and desired endpoint after PDL treatment, indicating sufficient intravascular coagulation from selective photothermolysis.

  4. Which laser is considered the gold standard for treating port wine stains?

    Answer: Pulsed Dye Laser (PDL)

    The pulsed dye laser is the gold standard for port wine stains because its wavelength selectively targets oxyhemoglobin with minimal epidermal collateral damage.

  5. According to the principle of selective photothermolysis, the pulse duration for vascular lesion treatment should be:

    Answer: Equal to or shorter than the thermal relaxation time of the target vessel

    Pulse duration must equal or be shorter than the vessel's thermal relaxation time to confine heat within the vessel and prevent damage to surrounding tissue.

  6. Which type of vascular lesion is most challenging to treat due to vessel depth and wall thickness?

    Answer: Leg telangiectasias and reticular veins

    Leg telangiectasias and reticular veins lie deeper in the dermis with thicker vessel walls, requiring higher fluences and longer wavelengths, making treatment more complex.

  7. For selective photothermolysis of vascular lesions, the laser wavelength must:

    Answer: Be preferentially absorbed by oxyhemoglobin over surrounding skin structures

    Selective photothermolysis requires the wavelength to be preferentially absorbed by the target chromophore (oxyhemoglobin) relative to surrounding tissue to achieve selective vessel destruction.