Nursing Elites

1. A client is having blood tests and has an elevated lymphocyte level. Based on knowledge of cellular components, what does the nurse know about these cells?

• A. Contain histamine and provide protection during allergic reactions
• B. Are involved in phagocytosis
• C. Provide protection and immunity against foreign substances
• D. Carry hemoglobin and oxygen to body tissues

Correct answer: C

Rationale: Lymphocytes are a type of white blood cells that play a crucial role in supporting the body's immune system. They are responsible for producing substances that protect the body against infections and foreign substances that could potentially harm the client. Lymphocytes consist of two main types: T cells, which are produced in the thymus, and B cells, which are produced in the lymphatic tissue. Choice A is incorrect because histamine is mainly associated with basophils and mast cells, not lymphocytes. Choice B is incorrect as phagocytosis is a function of other white blood cells such as neutrophils and macrophages. Choice D is also incorrect as carrying hemoglobin and oxygen is a function of red blood cells, not lymphocytes.

2. A client must use a non-rebreathing oxygen mask. Which of the following statements is true regarding this type of mask?

• A. A non-rebreather can provide an FiO2 of 40%.
• B. A client should breathe through his or her mouth when using a non-rebreather.
• C. A non-rebreather offers a reservoir from which the client inhales.
• D. The mask of a non-rebreather should be changed every 3 hours.

Correct answer: A

Rationale: A non-rebreather mask is used for supplemental oxygen delivery for clients experiencing breathing difficulties. The non-rebreather mask includes a one-way valve that allows exhaled air to escape, preventing the rebreathing of carbon dioxide. The client inhales oxygenated air from a reservoir bag attached to the mask, providing high-concentration oxygen therapy. A non-rebreather mask can deliver FiO2 levels of up to 90%, making it an effective intervention for clients requiring high oxygen concentrations. Therefore, the statement that 'A non-rebreather can provide an FiO2 of 40%' is correct. Choices B, C, and D are incorrect because clients should breathe through their nose and mouth, the mask offers a reservoir for inhaling oxygen, and the mask should be assessed and potentially replaced if soiled or damaged, not routinely changed every 3 hours.

3. Which of the following nursing interventions is appropriate for a client suffering from a fever?

• A. Avoid withholding food from the client
• B. Increase the client's fluid intake
• C. Provide oxygen
• D. All answers are correct

Correct answer: B

Rationale: The appropriate nursing intervention for a client suffering from a fever is to increase the client's fluid intake. A fever can elevate the body's metabolism, leading to increased breathing and heart workload. This can result in fluid loss due to heightened respiration and sweating. Moreover, the augmented heart workload may necessitate more oxygen to maintain tissue perfusion. Providing oxygen and increasing fluid intake help meet the body's heightened demands during a fever. Withholding food from the client is inappropriate as proper nutrition is crucial for recovery, and providing oxygen alone may not address the fluid and metabolic demands associated with fever. Therefore, the correct choice is to increase the client's fluid intake.

4. Which nursing intervention is most appropriate to maintain the patency of a client's nasogastric tube?

• A. Maintain a constant connection to low-intermittent suction
• B. Irrigate the tube as per physician's order
• C. Suction the mouth and nose every shift
• D. Perform a daily fecal occult blood sample

Correct answer: B

Rationale: The correct answer is to irrigate the tube as per physician's order. A client with a nasogastric tube is at risk of the tube kinking or clotting off, which can lead to complications such as abdominal distention or vomiting. To ensure the patency of the tube, the nurse should follow the physician's orders and facility policy to irrigate the tube with water or a solution as needed. Maintaining a constant connection to low-intermittent suction (Choice A) is not typically done to maintain tube patency. Suctioning the mouth and nose every shift (Choice C) is not directly related to maintaining nasogastric tube patency. Performing a daily fecal occult blood sample (Choice D) is unrelated to maintaining the patency of a nasogastric tube.

5. A patient diagnosed with a mild anxiety disorder has been referred to treatment in a community mental health center. Treatment most likely provided by the center includes

• A. Medical management of symptoms
• B. Daily psychotherapy
• C. Constant staff supervision
• D. Psychological stabilization

Correct answer: A

Rationale: Community mental health centers focus on rehabilitation, vocational needs, education, and socialization, as well as on the management of symptoms and medication. For a patient with a mild anxiety disorder, the primary focus would be on providing medical management of symptoms, such as prescribing appropriate medications and monitoring their effectiveness. Daily psychotherapy is not typically provided in community mental health centers for mild cases, as it may not be necessary. Constant staff supervision and psychological stabilization are more suited for patients requiring a higher level of care or in acute settings where continuous monitoring and stabilization are essential.

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