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?
Tuberculin skin test (TST)
Western blot test
Flow cytometry
Liver function tests
The Correct Answer is C
Explanation: The correct answer is c. Flow cytometry. Flow cytometry is a specialized test used to analyze the different cell types in a blood sample. In the case of SCID, flow cytometry can help identify the absence or severe deficiency of T cells and B cells, which are essential components of the immune system.
Incorrect choices:
a. A tuberculin skin test (TST) is used to detect exposure to tuberculosis (TB) and is not specific to diagnosing SCID.
b. A Western blot test is a type of immunoassay used to detect specific antibodies or antigens in the blood but is not specific to diagnosing SCID.
d. Liver function tests are used to assess the health of the liver and are not specific to diagnosing SCID.
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Related Questions
Correct Answer is C
Explanation
Explanation: The correct answer is c. Implement strict infection control measures. Clients with immunodeficiency disorders have a weakened immune system and are more susceptible to infections. Implementing strict infection control measures, such as hand hygiene, using personal protective equipment, and limiting exposure to potential sources of infection, can help prevent the spread of pathogens and protect the client from infections.
Incorrect choices:
a. Encouraging the client to participate in crowded social gatherings can put the client at risk of exposure to infectious agents, which is not appropriate for someone with immunodeficiency.
b. Live vaccines contain weakened pathogens and are contraindicated for clients with immunodeficiency disorders, as they can cause serious infections in this population.
d. While a diet high in fresh fruits and vegetables is generally beneficial for overall health, it does not specifically address the increased risk of infections in clients with immunodeficiency disorders. Strict infection control measures are more relevant to preventing infections in these clients.
Correct Answer is C
Explanation
The correct answer is c. Ataxia-telangiectasia. Ataxia-telangiectasia is a rare genetic disorder that affects the cerebellum, causing poor muscle coordination (ataxia) and small, dilated blood vessels (telangiectasias). It also leads to defective T-cell function, making affected individuals more susceptible to infections.
Incorrect choices:
a. X-linked agammaglobulinemia (XLA) is a primary immunodeficiency disorder that primarily affects B-cell function, leading to a lack of mature B cells and low levels of immunoglobulins, but does not involve defective T-cell function.
b. Selective immunoglobulin A (IgA) deficiency is characterized by a deficiency of IgA, but it does not typically lead to defective T-cell function.
d. DiGeorge syndrome is caused by a deletion on chromosome 22 and primarily affects the development of certain organs, including the thymus and parathyroid glands, resulting in T-cell deficiency. While it may lead to some B-cell abnormalities, defective T-cell function is the hallmark of this disorder.
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