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The main cause of psoriasis is:

A.

Poor hygiene and lack of skin care

B.

Exposure to environmental toxins

C.

Genetic and immune system factors

D.

Excessive sun exposure

Answer and Explanation

The Correct Answer is C

Explanation: Psoriasis is believed to have a genetic component, and it is considered an autoimmune disorder where the immune system mistakenly attacks healthy skin cells, leading to the characteristic skin changes.

Incorrect choices: a. Poor hygiene and lack of skin care - Psoriasis is not caused by poor hygiene or lack of skin care.

b. Exposure to environmental toxins - While environmental factors may trigger or worsen psoriasis in some individuals, they are not the primary cause of the condition.

d. Excessive sun exposure - Sun exposure may improve psoriasis symptoms in some people, but it is not the underlying cause of the condition.


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Related Questions

Correct Answer is A

Explanation

Explanation: Applying topical corticosteroids to affected areas can help reduce inflammation, itching, and discomfort associated with psoriasis. However, the nurse should ensure that the patient follows the prescribed dosage and instructions for the use of corticosteroids.

Incorrect choices: b. Encouraging the patient to scratch the affected areas gently is not appropriate, as scratching can exacerbate psoriasis and lead to skin damage and infection.

c. NSAIDs are not typically used to manage itching and discomfort in psoriasis. They may be prescribed for joint pain associated with psoriatic arthritis, but they do not target the skin symptoms of psoriasis.

d. While warm baths can be soothing, frequent baths may actually dry out the skin and worsen psoriasis. Additionally, the water should be lukewarm rather than hot to avoid triggering flare-ups.

Correct Answer is A

Explanation

Explanation: Psoriasis commonly affects the scalp, leading to the formation of red, scaly patches on the scalp's surface. It can also extend to the hairline and behind the ears.

Incorrect choices: b. Soles of the feet - Psoriasis can affect the soles of the feet, but it is less common than scalp involvement.

c. Abdomen - Psoriasis can occur on the abdomen, but it is not as frequently affected as the scalp.

d. Neck - Psoriasis can involve the neck area, but it is not the most common site of involvement.

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