The nurse is caring for an infant suspected of having severe combined immunodeficiency (SCID). Which diagnostic test should the nurse anticipate being prescribed for the infant?

Explanation: The correct answer is a. Wear a mask when entering the client's room. Wearing a mask when entering the client's room is a standard precaution that can help prevent the transmission of infectious agents, especially for clients with immunodeficiency disorders who are at a higher risk of infections.

Incorrect choices:

b. Using a sterile dressing change technique for all wound care may not be necessary for all clients with immunodeficiency disorders. It is essential to assess the client's specific condition and wound characteristics to determine the appropriate dressing change technique.

c. Encouraging the client to wear a mask at all times may not be feasible or necessary, as masks are typically used to prevent the transmission of infections from the client to others, not the other way around.

d. Placing the client on strict isolation precautions may not be necessary for all clients with immunodeficiency disorders. The appropriate level of isolation precautions should be determined based on the client's specific condition and risk factors for infections.

Explanation: The correct answer is b. Common variable immunodeficiency (CVID). CVID is a primary immunodeficiency disorder characterized by a reduced level of immunoglobulins, particularly IgA, leading to an increased susceptibility to infections.

Incorrect choices:

a. Severe combined immunodeficiency (SCID) is a more severe immunodeficiency disorder that affects multiple components of the immune system, not specifically IgA levels.

c. DiGeorge syndrome is caused by a genetic abnormality and is characterized by a defect in the development of certain organs, including the thymus and parathyroid glands. It may result in immune system abnormalities but does not primarily involve IgA deficiency.

d. Wiskott-Aldrich syndrome is a rare X-linked genetic disorder that affects platelet function and immune system regulation but is not specifically associated with IgA deficiency.