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The nurse is preparing a teaching plan for a group of well-educated clients who were found to be HIV positive within the last year. The nurse should explain that the human immunodeficiency virus (HIV) acts in which way to suppress the immune system?

A.

Increase in B-lymphocytes and IgM.

B.

Destruction of helper T-cells and CD4 cells.

C.

Deficiency of cytotoxic T cells.

D.

Proliferation of suppressor T-cells.

Answer and Explanation

The Correct Answer is B

Choice A rationale

 

An increase in B-lymphocytes and IgM is not how HIV suppresses the immune system. B-lymphocytes are responsible for producing antibodies, and IgM is a type of antibody. HIV primarily affects T-lymphocytes, specifically helper T-cells (CD4 cells), rather than B-lymphocytes.

 

Choice B rationale

 

The destruction of helper T-cells and CD4 cells is the primary mechanism by which HIV suppresses the immune system. HIV targets and infects these cells, leading to their depletion. Helper T-cells play a crucial role in coordinating the immune response, and their loss results in a weakened immune system, making the body more susceptible to infections and diseases.

 

Choice C rationale

 

A deficiency of cytotoxic T cells is not the primary mechanism by which HIV suppresses the immune system. Cytotoxic T cells (CD8 cells) are involved in directly killing infected cells, but the main impact of HIV is on helper T-cells (CD4 cells), which are essential for orchestrating the immune response.

 

Choice D rationale

 

The proliferation of suppressor T-cells is not how HIV suppresses the immune system. Suppressor T-cells (regulatory T cells) help regulate and control the immune response, but HIV primarily affects helper T-cells (CD4 cells), leading to their destruction and a weakened immune system.


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View Related questions

Correct Answer is A

Explanation

Choice A rationale

Irregular rapid heart rate (tachycardia) is a serious side effect of albuterol and warrants immediate intervention. Albuterol is a beta-2 agonist that can cause stimulation of beta-1 receptors in the heart, leading to tachycardia and potential arrhythmias.

Choice B rationale

Uncontrollable shaking (tremors) is a common side effect of albuterol due to its stimulation of beta-2 receptors in skeletal muscles. While uncomfortable, it is not typically life-threatening.

Choice C rationale

Increased anxiety can occur with albuterol use due to its stimulant effects on the central nervous system. However, it is not as immediately dangerous as tachycardia.

Choice D rationale

Throat irritation is a minor side effect of albuterol and does not require immediate intervention.

Correct Answer is A

Explanation

Choice A rationale

Suctioning to clear secretions from the airway is the first intervention to implement. The client’s weak cough effort and use of accessory muscles to breathe suggest the presence of retained respiratory secretions, which can impair breathing and lead to further respiratory compromise.

Choice B rationale

Offering a prescribed PRN analgesic is important for overall comfort but is not the most immediate intervention needed to address the client’s respiratory distress.

Choice C rationale

Obtaining arterial blood gases may provide valuable information but is not the most immediate intervention needed to address the client’s respiratory distress.

Choice D rationale

Administering a prescribed antipyretic is not the most immediate intervention needed to address the client’s respiratory distress.

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