Question

Question 23 (1 point) A lesion on skin has been identified. You want to generate a photochemical reaction on this region. Assume that the lesion is concentrated with hematoporphyrin derivative (HPD). What is the best method for triggering the photochemical reaction in the lesion? Expose the tumour directly with an Nd:Yag laser emitting at 2 = 1um Insert diffusers into the lesion in order to scatter red light at 2 - 633 nm in all directions 13 Use an Argon laser (green light) and use an endoscope to deliver the energy to the lesion Insert diffusers into the lesion in order to scatter blue light in all directions Shine any laser source over the lesion Question 24 (1 point)

Answer 1

<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>

23) Use argon laser and use an endoscope to deliver energy to lasion.

EXPLANATION : best method for treatment and triggering photo chemical reaction in lesion

<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>

24) absorption of water present in the duct

explanation : Yag laser follows principle stating absorption of water present in duct

<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>.