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Which of the following are classified as killer, helper, memory, and suppressor?

A.

RBCS

B.

T cells

C.

B cells

D.

Platelets

E.

Which of the following are classified as killer, helper, memory, and suppressor?

Answer and Explanation

The Correct Answer is A

A. RBCs: 

Red blood cells (RBCs) carry oxygen and have no role in the immune response.

B. T cells:

T cells are classified into subsets like cytotoxic (killer), helper, memory, and suppressor (regulatory) T cells, each with specialized immune functions.

C. B cells:

While B cells also have memory capabilities and produce antibodies, they are not categorized into killer or suppressor types.

D. Platelets:

Platelets are involved in blood clotting, not immunity.


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Related Questions

Correct Answer is C

Explanation

A. Red, like blood:

Lymph is typically clear to pale yellow; it lacks red blood cells, which give blood its red color.

B. Formed when fluid is filtered across the subclavian veins into the tissue spaces:

Lymph forms from interstitial (tissue) fluid, not from fluid filtered from veins into tissues.

C. Formed from tissue fluid:

Lymph originates as interstitial fluid that enters lymphatic vessels and is transported back into the circulatory system.

D. Pumped by the left heart into systemic circulation:

Lymph is not pumped by the heart; it moves through the lymphatic system via muscle contractions and valves.

Correct Answer is A

Explanation

A. Infection:

The elevated WBC count and abnormal differential, along with symptoms of fever and chills, point to an active infection, which is consistent with recent exposure to ill children and no flu vaccine.

B. Thrombocytopenia:

Thrombocytopenia refers to a low platelet count, which was not provided or implied in the lab data.

C. Leukemia:

While leukemia can cause elevated WBCs, this client’s clinical picture fits a common infection, and leukemia typically presents with more severe or chronic symptoms and abnormal blood cell morphology.

D. Anemia:

The client’s hemoglobin and hematocrit are above normal, which rules out anemia.

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