How it Works
Try Naxlex NCLEX-RN (Free-Trial)

Which of the following immune system components plays a key role in the etiology of psoriasis?

A.

T-cells

B.

B-cells

C.

Platelets

D.

Eosinophils

Answer and Explanation

The Correct Answer is A

Explanation: Psoriasis is an autoimmune disorder in which T-cells, a type of white blood cell, become overactive and trigger an inflammatory response. These T-cells promote the rapid growth of skin cells, leading to the characteristic plaques seen in psoriasis.

Incorrect choices: b. B-cells: While B-cells are important components of the immune system, they are not primarily involved in the etiology of psoriasis. T-cells are the central players in the autoimmune response seen in psoriasis.

c. Platelets: Platelets are primarily responsible for blood clotting and are not directly related to the development of psoriasis.

d. Eosinophils: Eosinophils are a type of white blood cell involved in immune responses against parasitic infections and allergic reactions. While they are important in certain immune processes, they are not the main players in psoriasis etiology.


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is D

Explanation

Explanation: Taking long, hot baths can actually worsen psoriasis by drying out the skin and triggering flare-ups. Instead, patients with psoriasis should take short, lukewarm baths or showers to avoid exacerbating the condition.

Incorrect choices: a. Moisturizing the skin regularly is an essential part of psoriasis management to prevent dryness and scaling.

b. Avoiding fragranced soaps and lotions can help minimize skin irritation and sensitivity, which is beneficial for patients with psoriasis.

c. Applying sunscreen before going outside is important, as exposure to UV rays can trigger or worsen psoriasis. Sun protection helps prevent further skin damage.

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.

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Register