Cosmetic Dermatology Assistance Flashcards

What is the primary purpose of applying a coupling gel during an ultrasound-based skin tightening procedure such as Ultherapy?

Answer: To facilitate ultrasound wave transmission and skin contact

Coupling gel eliminates air gaps between the transducer and skin, allowing efficient ultrasound energy transmission to the target tissue depth.

When documenting pre-treatment photographs for a cosmetic dermatology procedure, which standardized lighting condition is preferred for consistency?

Answer: Standardized studio lighting at consistent angles

Standardized studio lighting at consistent angles ensures reproducible images that allow accurate before-and-after comparisons.

Which filler material is considered reversible because it can be dissolved with hyaluronidase if a vascular complication is suspected?

Answer: Hyaluronic acid (Juvederm, Restylane)

Hyaluronic acid fillers are uniquely reversible because hyaluronidase can rapidly dissolve them, making them the preferred first-line filler for most cosmetic indications.

A patient develops a Tyndall effect after hyaluronic acid filler injection to the tear trough. What does this bluish discoloration indicate?

Answer: Superficial placement of filler causing light scattering

The Tyndall effect occurs when HA filler is placed too superficially in thin periorbital skin, causing blue-gray discoloration from light scattering.

Which skin type on the Fitzpatrick scale has the highest risk of post-procedure hyperpigmentation following ablative laser treatments?

Answer: Types V–VI

Fitzpatrick types V and VI have greater baseline melanin and a higher density of reactive melanocytes, making post-inflammatory hyperpigmentation a significant risk after ablative lasers.

Before assisting with sclerotherapy for spider veins, the tech should verify which essential baseline measurement?

Answer: Ankle-brachial index or venous Doppler study results if indicated

Venous studies help rule out underlying venous insufficiency, which must be addressed before sclerotherapy to avoid treatment failure or complications.

A patient undergoing cryotherapy for seborrheic keratoses asks why the lesion will darken before it falls off. Which is the best explanation?

Answer: Cellular destruction causes post-inflammatory discoloration as the lesion crusts and separates

After cryotherapy, treated cells undergo necrosis and the lesion forms a crust, appearing darker before naturally sloughing off over 1–4 weeks.