Advanced Health Assessment Practice Exam

What is actinic keratosis primarily related to?

1. Genetic factors

2. Sun exposure

3. Viral infection

4. Allergic reactions

The correct answer is: Sun exposure

Actinic keratosis is primarily related to sun exposure, particularly prolonged and cumulative exposure to ultraviolet (UV) radiation from the sun. This condition is characterized by rough, scaly patches on sun-exposed areas of the skin, such as the face, ears, scalp, and neck. The UV radiation damages the DNA in the skin cells, leading to abnormal growth and the development of these precancerous lesions. While genetic factors can play a role in an individual's susceptibility to skin conditions, and certain viral infections or allergic reactions might affect the skin, they are not the primary causes associated with actinic keratosis. The distinctive characteristic of this condition directly links it to exposure to UV light, emphasizing the importance of sun protection to prevent its occurrence.