Which of the following skin features is commonly observed in psoriasis that aids in its diagnosis?

Explanation: Psoriasis is a chronic skin disorder that results from an overactive immune response, leading to the rapid growth of skin cells. This causes red, raised, and scaly patches to form on the skin, which can be itchy and painful.

Incorrect choices: a. Psoriasis is not primarily an autoimmune disease affecting the respiratory system. It is primarily a skin condition, although it may be associated with certain autoimmune factors.

b. Psoriasis is not caused by a bacterial infection. It is a non-infectious skin disorder with an underlying immune-mediated mechanism.

d. Psoriasis is not a type of skin cancer. It is a benign skin condition that does not involve the malignant transformation of melanocytes.

Explanation: Moisturizing the skin is essential for managing psoriasis and preventing dryness and scaling. Regular use of moisturizers helps maintain skin hydration and reduce the discomfort associated with psoriasis.

Incorrect choices: a. Encouraging the patient to pick or scratch the affected areas can worsen psoriasis and lead to skin damage and infection.

b. Applying hot packs to the skin lesions can exacerbate psoriasis and should be avoided. Lukewarm or cool packs may provide relief for some patients.

c. A diet high in spicy and acidic foods is not recommended for psoriasis patients, as certain foods may trigger flare-ups or exacerbate symptoms. A well-balanced, anti-inflammatory diet is more appropriate for psoriasis management.