Unit 3- Assessment

The theory of selective photothermolysis contains certain characteristics that optimise damage to the target tissue. Which of the following characteristics should match the thermal relaxation time?

At which approximate temperature does denaturation and coagulation of protein occur without vaporisation?

Anderson and Parrish proposed the concept of photothermolysis based on the Thermal Relaxation Time (TRT). What is the correct definition of TRT?

Scattering of light off of skin structures is a physical phenomenon influencing light propagation in biological tissue. Which wavelength has the highest degree of back scatter?

Which two of the following are advantages of having a large spot size laser or IPL?

In general, the best laser wavelengths for hair removal in Skin Types 1-4 are:

The best laser/IPL wavelengths for vascular treatments are:

The best laser/IPL wavelengths for epidermal pigmentation treatments are:

The mechanism of laser/IPL treatment of pigmented blemishes is:

Superficial vascular blemishes are removed using laser/IPL by?

A photochemical reaction is associated with exposure to which of the following types of light source: (Hint: give 2 answers)

A photomechanical reaction in skin e.g. tattoo removal is achieved using a laser with:

What is the skin abnormally sensitive to, following photodynamic therapy (PDT)?

Which of the following are absorption peaks for Protoporphyrin 9 (PpIX) in PDT acne treatment?

Your patient calls and is experiencing some slight oedema, redness and mild irritation at the treatment site, 1 day post laser hair removal. What should be your appropriate response?

Comparing ablative and non-ablative skin rejuvenation treatments, what is the main weakness of non-ablative techniques?

Which of the following is a characteristic associated with the incidence of paradoxical hair growth?

Which of the following are temporary side effects of laser and IPL treatment?