Nursing Elites

1. Which type of cells secrete insulin?

• A. alpha cells
• B. beta cells
• C. CD4 cells
• D. helper cells

Correct answer: B

Rationale: Beta cells are responsible for secreting insulin. Insulin is produced by beta cells in the pancreas and plays a crucial role in regulating blood sugar levels. Alpha cells secrete glucagon, not insulin (Choice A). CD4 cells are a type of immune cell that helps coordinate the immune response (Choice C). Helper cells are a type of immune cell that aids in activating other immune cells (Choice D). Therefore, the correct answer is beta cells.

2. A patient has a history of cardiac arrhythmia. A nurse has been ordered to give 2 units of blood to this patient. The nurse should take which of the following actions?

• A. Administer pain medication to the patient.
• B. Inform the patient's family about the procedure in person.
• C. Decrease the temperature of the blood to be given.
• D. Increase the temperature of the blood to be given.

Correct answer: D

Rationale: In patients with a history of cardiac arrhythmia, warming the blood before transfusion can help prevent additional arrhythmias. Cold blood can lead to arrhythmias and should be avoided. Administering pain medication (Choice A) is not directly related to the safe administration of blood. Informing the patient's family in person (Choice B) is important but not the immediate action required for safe transfusion. Decreasing the temperature of the blood to be given (Choice C) would increase the risk of cardiac arrhythmia, contrary to the goal of ensuring patient safety.

3. A client returns to the nursing unit post-thoracotomy with two chest tubes in place connected to a drainage device. The client's spouse asks the nurse about the reason for having two chest tubes. The nurse's response is based on the knowledge that the upper chest tube is placed to:

• A. Remove air from the pleural space
• B. Create access for irrigating the chest cavity
• C. Evacuate secretions from the bronchioles and alveoli
• D. Drain blood and fluid from the pleural space

Correct answer: A

Rationale: The correct answer is 'Remove air from the pleural space.' When a client has two chest tubes in place post-thoracotomy, the upper chest tube is typically positioned to remove air from the pleural space. Air rises, so placing the tube at the top allows for efficient removal of air that has accumulated in the pleural cavity. Choice B, creating access for irrigating the chest cavity, is incorrect as chest tubes are not primarily used for irrigation. Choice C, evacuating secretions from the bronchioles and alveoli, is incorrect as chest tubes are not designed for this purpose. Choice D, draining blood and fluid from the pleural space, is also incorrect as the upper chest tube in this scenario is specifically for removing air, not blood or fluid.

4. Which of the following observations is most important when assessing a client's breathing?

• A. presence of breathing and pulse rate
• B. breathing pattern and adequacy of breathing
• C. presence of breathing and adequacy of breathing
• D. patient position and adequacy of breathing

Correct answer: C

Rationale: The correct answer is the presence of breathing and adequacy of breathing. It is crucial to ensure that the client is not only breathing but also breathing adequately. Choices A and D are incorrect as pulse rate and patient position are not the most critical observations when assessing a client's breathing. Pulse rate is more related to assessing circulation, and patient position is important but not as crucial as ensuring the client is breathing and breathing adequately. Choice B is partially correct as breathing pattern is important, but the most critical observation is the adequacy of breathing. Adequacy of breathing ensures that the client is receiving enough oxygen to support proper body function and is the key focus during breathing assessment.

5. Teaching about the need to avoid foods high in potassium is most important for which client?

• A. a client receiving diuretic therapy
• B. a client with an ileostomy
• C. a client with metabolic alkalosis
• D. a client with renal disease

Correct answer: D

Rationale: Clients with renal disease are predisposed to hyperkalemia and should avoid foods high in potassium. High potassium levels can further burden the kidneys and worsen the condition. Choices A, B, and C are incorrect because clients receiving diuretic therapy, with an ileostomy, or with metabolic alkalosis are at risk for hypokalemia, which is low potassium levels. Therefore, these clients should actually be encouraged to eat foods high in potassium to maintain adequate levels and prevent complications associated with hypokalemia.

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