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Which type of immunodeficiency disorder is characterized by a deficiency in immunoglobulin A (Ig

A.

a. Selective IgM deficiency

B.

X-linked agammaglobulinemia

C.

Common variable immunodeficiency (CVID)

D.

Selective IgA deficiency

Answer and Explanation

The Correct Answer is D

Explanation: The correct answer is d. Selective IgA deficiency. This disorder is characterized by a lack of immunoglobulin A, which can lead to an increased susceptibility to infections, particularly in the respiratory and gastrointestinal tracts.

Incorrect choices:

a. Selective IgM deficiency is a rare immunodeficiency disorder characterized by a lack of immunoglobulin M (IgM), not IgA.

b. X-linked agammaglobulinemia is a primary immunodeficiency disorder caused by a mutation in the BTK gene, resulting in a deficiency of B cells and immunoglobulins.

c. Common variable immunodeficiency (CVID) is a heterogeneous group of disorders characterized by decreased levels of immunoglobulins, including IgA, IgG, and IgM.


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Related Questions

Correct Answer is C

Explanation

Explanation: The correct answer is c. "It's essential for me to receive all recommended vaccines, including live vaccines." Clients with primary immunodeficiency disorders should not receive live vaccines, as they can cause severe infections in this population. Only inactivated vaccines are recommended to avoid the risk of vaccine-associated infections.

Incorrect choices:

a. Avoiding contact with sick individuals is crucial for clients with primary immunodeficiency disorders to minimize the risk of acquiring infections.

b. Taking prescribed immunoglobulin therapy as scheduled is an important treatment for clients with primary immunodeficiency disorders to boost their immune response and prevent infections.

d. Reporting any signs of infection or illness promptly to the healthcare provider is essential for early detection and treatment of infections in clients with primary immunodeficiency disorders.

Correct Answer is C

Explanation

Explanation: The correct answer is c. Frequent and severe infections. One of the hallmark features of immunodeficiency disorders is an increased susceptibility to infections. Individuals with immunodeficiencies may experience frequent and severe infections, including bacterial, viral, and fungal infections.

Incorrect choices:

a. Excessive inflammation at the site of infection is not a common clinical manifestation of immunodeficiency disorders. Immunodeficiencies are characterized by a weakened immune response, which may result in a reduced inflammatory response to infections.

b. Hyperactive immune response to allergens is seen in allergies and autoimmune disorders, not immunodeficiency disorders.

d. Immunodeficiency disorders are characterized by a lack or dysfunction of specific immune components, such as B cells or T cells, leading to a decreased production of antibodies, not increased.

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