CLT Vascular & Pigmented Lesion Treatment 4

Question 1

A laser technician is treating a patient's rosacea-associated erythema. The ideal endpoint for facial diffuse redness is:

Accepted Answer

Transient mild erythema and edema without purpura

Answer

Immediate blistering of the treated area

Answer

Complete blanching of all redness immediately

Answer

Purpura lasting more than 2 weeks

Question 2

IPL (intense pulsed light) differs from laser in that it:

Accepted Answer

Emits a broad spectrum of light filtered to target ranges

Answer

Emits a single coherent wavelength

Answer

Cannot treat vascular lesions

Answer

Uses a pulsed CO2 mechanism

Question 3

Which post-treatment instruction is most critical after laser treatment of pigmented lesions?

Accepted Answer

Use broad-spectrum SPF 30+ sunscreen and minimize UV exposure

Answer

Apply hydrocortisone cream for 4 weeks

Answer

Avoid all physical activity permanently

Answer

Scrub the treated area daily to remove crusts faster

Question 4

Which of the following best describes a cherry angioma and its typical laser treatment response?

Accepted Answer

A benign capillary proliferation that responds well to KTP or PDL

Answer

A deep arteriovenous malformation requiring Nd:YAG

Answer

A precancerous lesion requiring surgical excision first

Answer

A lymphatic malformation not responsive to laser

Question 5

Test spots are most important when treating which patient scenario?

Accepted Answer

A darker-skinned patient with multiple lentigines being treated for the first time

Answer

A fair-skinned patient with a single small cherry angioma

Answer

A repeat patient with documented settings from a prior session

Answer

A patient with a single spider telangiectasia under 1 mm

Question 6

Which histological finding would MOST suggest a lesion requires biopsy before laser treatment rather than proceeding directly?

Accepted Answer

Irregular borders, multiple colors, and rapid recent growth

Answer

Uniform brown pigmentation with well-defined borders

Answer

Flat lesion with symmetrical pigment distribution

Answer

Lesion present since childhood with no recent changes

Question 7

When increasing spot size during vascular lesion treatment with the same fluence, which effect occurs?

Accepted Answer

Increased effective penetration depth due to reduced scatter

Answer

Decreased depth of penetration

Answer

Greater scattering at tissue surface

Answer

Reduced total energy delivered to the target