What are the typical clinical manifestations of psoriasis?

Explanation: Psoriasis is an autoimmune disorder characterized by an overactive immune system. In psoriasis, the immune system mistakenly triggers inflammation, leading to the rapid growth of skin cells and the formation of plaques.

Incorrect choices: a. Immune system suppresses inflammation and skin cell proliferation: This statement is incorrect. In psoriasis, the immune system does not suppress inflammation but rather promotes it.

b. Immune system responds normally to environmental triggers: This statement is incorrect. In psoriasis, the immune system's response to triggers is abnormal, leading to the characteristic inflammation and skin cell overgrowth.

d. Immune system functions independently of psoriasis development: This statement is incorrect. The immune system plays a central role in psoriasis etiology. The abnormal immune response is the driving force behind the development and progression of psoriasis.

Explanation: Topical retinoids can increase the skin's sensitivity to sunlight and may cause sunburn. Patients should avoid excessive sun exposure and use sunscreen to protect their skin when using topical retinoids.

Incorrect choices: a. Topical retinoids should be applied to dry skin, not wet skin, to ensure proper absorption and effectiveness.

b. Topical retinoids are typically applied to the entire affected area, not just individual psoriasis plaques. They work best when applied consistently to the entire affected area.

c. Topical retinoids may take several weeks to show significant improvement in psoriasis symptoms, and immediate relief is not typical.