ABCS Non-Surgical Cosmetic Procedures and Aesthetic Medicine 3

Question 1

Which chromophore is primarily targeted by the 1064 nm Nd:YAG laser?

Accepted Answer

Melanin

Answer

At 1064 nm, melanin is the predominant chromophore, though this wavelength has relatively low melanin absorption, making it safer for darker skin tones than shorter wavelengths.

Question 2

Cryolipolysis (CoolSculpting) induces fat reduction primarily through which mechanism?

Accepted Answer

Apoptosis triggered by controlled cooling without freezing tissue

Answer

Cryolipolysis selectively triggers apoptosis in adipocytes at temperatures above freezing (around 4°C), exploiting fat cells' heightened sensitivity to cold compared to surrounding tissues.

Question 3

Which of the following best describes the zone of coagulation in a fractional ablative laser treatment?

Accepted Answer

Columns of ablated tissue surrounded by intact skin bridges

Answer

Fractional ablative lasers create microscopic treatment zones (MTZs)—columns of ablated/coagulated tissue—surrounded by untreated skin that accelerates healing and reduces downtime.

Question 4

A patient on warfarin therapy is requesting a chemical peel. At which peel depth does bleeding risk become clinically significant?

Accepted Answer

Deep (reticular dermis)

Answer

Deep chemical peels penetrating the reticular dermis carry meaningful bleeding risk and require coagulation status assessment; superficial and medium peels generally do not induce significant bleeding.

Question 5

Which muscle is responsible for the 'bunny lines' that appear on the nose with facial expression?

Accepted Answer

Nasalis

Answer

The nasalis muscle (transverse portion) contracts to produce diagonal wrinkles on the dorsal nose known as bunny lines, which are treated with small doses of botulinum toxin.

(ABCS) American Board of Cosmetic Surgery Certification Practice Test

(ABCS) American Board of Cosmetic Surgery Certification Practice Test

ABCS Non-Surgical Cosmetic Procedures and Aesthetic Medicine 3