Which of the following statements is true regarding immunodeficiency disorders?

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.

Explanation: The correct answer is a. "Practice proper hand hygiene and infection prevention measures." Proper hand hygiene, including regular handwashing with soap and water, is essential for clients with immunodeficiency disorders to reduce the risk of acquiring infections. It is one of the most effective ways to prevent the transmission of pathogens.

Incorrect choices:

b. Engaging in intense physical activities is not recommended for clients with immunodeficiency disorders, as it can put additional stress on the immune system. Moderate, regular exercise is beneficial for overall health, but extreme physical activities may be harmful to the immune system.

c. There is no need for clients with immunodeficiency disorders to limit their fluid intake unless they have a medical condition that requires fluid restriction. Adequate fluid intake is essential for overall health and immune function.

d. Consuming a diet rich in raw and undercooked meat is not recommended for clients with immunodeficiency disorders, as it can increase the risk of foodborne infections. It is important for these clients to follow food safety guidelines and avoid consuming raw or undercooked meat.