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
Which laser wavelength is preferred for treating deeper leg veins due to its greater tissue penetration depth?
Answer: 1064 nm (Nd:YAG)
The 1064 nm Nd:YAG laser penetrates deeper into tissue than shorter wavelengths, making it more effective for treating deep leg veins and larger caliber vessels.
Which cooling method provides the most consistent and synchronized epidermal protection during vascular laser treatments?
Answer: Dynamic cooling device (DCD) with cryogen spray
Dynamic cooling devices deliver timed cryogen spray milliseconds before and after each laser pulse, providing precise epidermal protection synchronized with energy delivery.
Port wine stains (nevus flammeus) are correctly classified as which type of vascular anomaly?
Answer: Capillary malformations
Port wine stains are congenital capillary malformations — structural abnormalities in capillary development that do not involute spontaneously, unlike hemangiomas.
Which Fitzpatrick skin type presents the greatest challenge during vascular laser treatment due to competing chromophore absorption?
Answer: Types V–VI
Darker skin types (V–VI) contain abundant epidermal melanin that competes with oxyhemoglobin for laser energy, increasing the risk of dyspigmentation and epidermal burns.
For treating small facial telangiectasias (approximately 0.1–0.3 mm in diameter), what is the appropriate pulse duration range based on thermal relaxation time?
Answer: 1–10 milliseconds
Small telangiectasias have thermal relaxation times in the 1–10 millisecond range; using pulse durations within this window achieves selective photothermolysis without heat spreading to surrounding tissue.
Cherry angiomas (senile angiomas) are most effectively treated with which laser or light source?
Answer: KTP 532 nm or PDL 585/595 nm
Cherry angiomas are superficial dilated capillary lesions that respond well to visible wavelength lasers (KTP 532 nm or PDL 585/595 nm) targeting their oxyhemoglobin content.
What post-treatment response is considered normal and expected after PDL treatment of vascular lesions and should be communicated during patient counseling?
Answer: Purpura (bruising) lasting 7–14 days
PDL characteristically produces purpura that resolves within 7–14 days; patients must be counseled pretreatment that this bruised appearance is a normal and expected treatment outcome.