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Which statement accurately defines psoriasis?

A.

Psoriasis is an autoimmune disease that primarily affects the respiratory system.

B.

Psoriasis is a bacterial skin infection caused by Streptococcus bacteria.

C.

Psoriasis is a chronic inflammatory skin condition characterized by red, scaly patches.

D.

Psoriasis is a type of skin cancer that arises from melanocytes.

Answer and Explanation

The Correct Answer is C

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.


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Related Questions

Correct Answer is C

Explanation

Explanation: Moisturizers are beneficial in managing psoriasis symptoms as they help keep the skin hydrated and reduce dryness and itching. Avoiding moisturizers can worsen psoriasis symptoms and is not recommended.

Incorrect choices: a. Stress is a known trigger for psoriasis flare-ups, and avoiding stress can help manage the condition.

b. Limiting alcohol consumption is important as alcohol can trigger or exacerbate psoriasis symptoms.

d. Smoking is associated with increased severity and risk of psoriasis, and quitting smoking can help improve symptoms.

Correct Answer is A

Explanation

Explanation: Psoriasis commonly affects the scalp and nails in addition to other areas of the body. Scalp psoriasis can cause flaking and scale buildup on the scalp, while nail psoriasis can lead to pitting, discoloration, and thickening of the nails.

Incorrect choices: b. Buttocks and thighs: While psoriasis can occur in these areas, it is not one of the most common areas affected.

c. Lower back and shoulders: These areas can be affected by psoriasis, but they are not the most commonly affected regions.

d. Upper arms and neck: Psoriasis can occur on the upper arms and neck, but it is not the most frequently affected area.

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