Nursing Elites

1. A client's arterial blood gas results show a pH of 7.3 and a PaCO2 of 50 mm Hg. The client is experiencing which of the following acid-base imbalances?

• A. Metabolic acidosis
• B. Metabolic alkalosis
• C. Respiratory acidosis
• D. Respiratory alkalosis

Correct answer: C

Rationale: In respiratory acidosis, there is an excess of carbon dioxide (PaCO2 > 45 mm Hg) leading to a decrease in pH (<7.35). The given values of a pH of 7.3 and PaCO2 of 50 mm Hg indicate respiratory acidosis. Metabolic acidosis involves a primary decrease in bicarbonate levels with a compensatory decrease in PaCO2 to maintain balance. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. Respiratory alkalosis is marked by low PaCO2 and increased pH levels.

2. A client with end-stage renal disease (ESRD) is receiving hemodialysis. Which assessment finding indicates a need for immediate action?

• A. Weight gain of 1 kg since the last dialysis session
• B. Blood pressure of 150/90 mm Hg
• C. Potassium level of 6.5 mEq/L
• D. Hemoglobin level of 10 g/dL

Correct answer: C

Rationale: A potassium level of 6.5 mEq/L is critically high and can lead to life-threatening cardiac dysrhythmias, requiring immediate intervention. Hyperkalemia is a common complication in clients with ESRD due to the kidneys' inability to excrete potassium effectively. High potassium levels can result in serious cardiac consequences such as arrhythmias, cardiac arrest, and death. Prompt action is necessary to prevent these severe complications.

3. When preparing a client for transfer to the ICU for placement of a pulmonary artery catheter, the nurse should explain that this catheter is used to monitor which of the following conditions?

• A. Intracranial pressure
• B. Spinal cord perfusion
• C. Renal function
• D. Hemodynamic status

Correct answer: D

Rationale: A pulmonary artery catheter is primarily used to monitor hemodynamic status. It provides essential information on cardiac output, preload, afterload, and overall cardiovascular function. This data helps healthcare providers manage the client's fluid status, cardiac function, and guide treatment interventions in critically ill patients. Monitoring intracranial pressure, spinal cord perfusion, or renal function would require different monitoring devices and techniques, not a pulmonary artery catheter.

4. When caring for a client with acute pancreatitis, what intervention is most appropriate?

• A. Encourage a high-protein diet.
• B. Administer pain medication as needed.
• C. Provide small, frequent meals.
• D. Increase oral fluid intake.

Correct answer: B

Rationale: Administering pain medication as needed is the most appropriate intervention for a client with acute pancreatitis. Pain management is crucial as pancreatitis can cause severe and debilitating pain. Providing pain relief is essential to improve the client's comfort and well-being.

5. A college health nurse interprets the peak expiratory flow rate for a student who has asthma and finds that the student is in the yellow zone of his asthma action plan. The nurse should not base her actions on which of the following information?

• A. The student should use his quick-relief inhaler.
• B. The student's asthma is not well controlled.
• C. The student's peak flow is 50% to 80% of his best peak flow.
• D. The student needs to go to the hospital

Correct answer: D

Rationale: In an asthma action plan, the yellow zone indicates caution and signals a need to monitor symptoms closely. When a student is in the yellow zone, the appropriate action is to follow the prescribed steps, which typically include using a quick-relief inhaler and closely monitoring peak flow. Going to the hospital is usually reserved for severe asthma exacerbations in the red zone. Therefore, the information that the student needs to go to the hospital is not typically appropriate when the student is in the yellow zone.

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