CDT Cosmetic Dermatology Assistance 2

Question 1

Which topical agent is most commonly used as a pre-treatment to reduce the risk of post-inflammatory hyperpigmentation before laser resurfacing in darker skin tones?

Accepted Answer

Hydroquinone

Answer

Hydroquinone is the gold-standard pre-treatment to suppress melanocyte activity and reduce PIH risk before laser procedures in Fitzpatrick skin types IV–VI.

Question 2

When assisting with a chemical peel, what is the correct action if the patient reports extreme burning beyond the expected sensation during a medium-depth TCA peel?

Accepted Answer

Notify the supervising physician and prepare to neutralize

Answer

Unexpected intense burning may indicate excessive penetration; the dermatology tech must alert the physician immediately while being prepared to neutralize.

Question 3

A patient presents for a consultation on dermal fillers and reports taking aspirin daily for cardiac prophylaxis. Which is the most appropriate next step?

Accepted Answer

Document the medication and inform the supervising physician

Answer

The dermatology tech's role is to document all medications and relay the information to the physician, who will determine if anticoagulant management is needed.

Question 4

Which neuromodulator injection is FDA-approved for treating glabellar lines and works by blocking acetylcholine release at the neuromuscular junction?

Accepted Answer

Botulinum toxin type A

Answer

Botulinum toxin type A (e.g., Botox) temporarily paralyzes targeted muscles by inhibiting acetylcholine release, smoothing dynamic wrinkles.

Question 5

During microneedling setup, the sterile cartridge tip should be discarded after each patient to prevent which primary risk?

Accepted Answer

Cross-contamination and bloodborne pathogen transmission

Answer

Single-use sterile cartridges prevent cross-contamination with blood and body fluids, protecting subsequent patients from bloodborne pathogens.

(CDT) Certified Dermatology Tech Practice Test

(CDT) Certified Dermatology Tech Practice Test

CDT Cosmetic Dermatology Assistance 2