What is the primary factor contributing to the development of psoriasis?
Genetic predisposition and family history.
Exposure to harsh chemicals and irritants.
Bacterial infection of the skin.
Excessive sun exposure.
The Correct Answer is A
Explanation: Psoriasis has a strong genetic component, and individuals with a family history of the condition are more likely to develop it. Specific genetic factors are involved in the immune response and skin cell growth regulation, leading to psoriasis.
Incorrect choices: b. While exposure to certain chemicals and irritants can exacerbate psoriasis symptoms, they are not the primary factor contributing to its development.
c. Psoriasis is not caused by a bacterial infection. It is a non-infectious inflammatory skin disorder.
d. Sun exposure can affect psoriasis, but it is not the primary factor contributing to its development. In some cases, moderate sunlight exposure may even improve psoriasis symptoms.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Explanation: The typical clinical manifestations of psoriasis include red, raised, and scaly patches on the skin. These patches are often itchy and may be associated with discomfort.
Incorrect choices: a. Purulent discharge is not a characteristic feature of psoriasis. Psoriasis lesions typically do not contain pus.
b. Psoriasis lesions are not smooth and painless. They are raised and may be painful or itchy.
d. Ulcerated and bleeding skin sores are not typical of psoriasis. Psoriasis lesions are characterized by dry, scaly plaques rather than open sores.
Correct Answer is B
Explanation
Explanation: Psoriasis is characterized by the presence of itchy, raised, red patches on the skin with silvery scales. These patches are known as plaques and are a hallmark feature of psoriasis.
Incorrect choices: a. Painful, deep ulcers on the skin: This description does not align with psoriasis. Psoriasis plaques are not typically painful or ulcerated.
c. Small, fluid-filled blisters on the palms and soles: This description is more characteristic of a condition called palmoplantar pustulosis, not psoriasis.
d. Thickened, hardened skin with deep cracks: This description is more typical of a condition called lichenified eczema or chronic contact dermatitis, not psoriasis.
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