Question

1. the most common cause of skin cancer is

a. smoking
b. exposure to certain chemicals
c. exposure to uv radiation
d. exposure to fungus

1. the abcde warning signs of melanoma are

a. asymmetrical, bleeding, color, diameter, evolve
b. asymmetrical, border, change, diameter, elevation
c. altered, bleeding, change, discharge, evolve
d. asymmetrical, border, color, diameter, evolve

1. when all the skin has been destroyed and the patient feels no immediate pain, it is a degree burn.

a. fourth
b. third
c. second
d. first

Explanation:

1. Smoking is mainly linked to lung - related diseases. Exposure to certain chemicals and fungus are not the most common causes of skin cancer. UV radiation is well - known to damage skin cells and is the most common cause of skin cancer.
2. The ABCDE warning signs of melanoma stand for Asymmetry, Border irregularity, Color variation, Diameter (usually larger than 6mm), and Evolving (changes over time).
3. First - degree burns affect only the outer layer of skin. Second - degree burns involve the outer and some of the underlying layer. Third - degree burns destroy the entire thickness of the skin, and the patient may not feel immediate pain as nerve endings are damaged. Fourth - degree burns extend into underlying tissues like muscle and bone.

Answer:

1. C. exposure to UV radiation
2. D. asymmetrical, border, color, diameter, evolve
3. B. third