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The nurse is caring for a client with emphysema who is mildly dyspneic after ambulation. Which instruction should the nurse provide to the client to improve gas exchange?

A.

Lay down on each side with knees bent and breathe from abdomen.

B.

Increase breathing rate for a full 30 seconds.

C.

Raise hands above the head to expand the diaphragm.

D.

Draw air in through nose and exhale slowly through pursed lips.

Answer and Explanation

The Correct Answer is D

Choice A rationale

 

Laying down on each side with knees bent and breathing from the abdomen is not an effective technique for improving gas exchange in emphysema patients.

 

Choice B rationale

 

Increasing the breathing rate for a full 30 seconds can lead to hyperventilation and is not recommended for improving gas exchange.

 

Choice C rationale

 

Raising hands above the head to expand the diaphragm is not a recognized technique for improving gas exchange in emphysema patients.

 

Choice D rationale

 

Drawing air in through the nose and exhaling slowly through pursed lips is an effective technique for improving gas exchange in emphysema patients. This method helps to keep the airways open longer and improves the removal of trapped air.


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Correct Answer is B

Explanation

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.

Correct Answer is D

Explanation

Choice A rationale

Total protein levels are not directly related to the symptoms of pallor and fatigue. While important, they do not provide immediate insight into the client’s current condition.

Choice B rationale

Sodium levels are crucial for overall health but are not directly related to the symptoms of pallor and fatigue. Monitoring sodium is important for fluid balance but not for diagnosing anemia.

Choice C rationale

Glucose levels are essential for managing diabetes and other metabolic conditions but are not directly related to the symptoms of pallor and fatigue. Monitoring glucose is important for overall health but not for diagnosing anemia.

Choice D rationale

Hemoglobin levels are directly related to the symptoms of pallor and fatigue. Diclofenac, an NSAID, can cause gastrointestinal bleeding, leading to anemia. Therefore, reviewing hemoglobin levels is crucial in this scenario.

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