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. 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.

3. A client is 1 day postoperative following a lobectomy with a chest tube drainage system in place. Which finding by the nurse indicates a need for intervention?

• A. Chest tube eyelets not visible
• B. Continuous bubbling in the suction control chamber
• C. Presence of tidal fluctuation in the water seal chamber
• D. Development of subcutaneous emphysema

Correct answer: D

Rationale: The development of subcutaneous emphysema is a concerning finding that requires immediate intervention. Subcutaneous emphysema results from air leaking into the tissues, which can lead to respiratory compromise. It is important to address this issue promptly to prevent further complications. The other options are normal or expected findings in a chest tube drainage system. Chest tube eyelets not being visible may indicate dislodgement, continuous bubbling in the suction control chamber indicates proper functioning, and the presence of tidal fluctuation in the water seal chamber demonstrates appropriate drainage and lung re-expansion.

4. A client who is intubated and has an intra-aortic balloon pump is restless and agitated. What action should the nurse perform first for comfort?

• A. Allow family members to remain at the bedside.
• B. Ask the family if the client would like a fan in the room.
• C. Keep the television tuned to the client's favorite channel.
• D. Speak loudly to the client in case of hearing problems.

Correct answer: A

Rationale: Allowing the family to remain at the bedside can help calm the client with familiar voices and presence, potentially reducing restlessness and agitation. Introducing a fan may not be the priority as it can spread germs through air movement. Keeping the television on all the time may not promote rest and recovery. Speaking loudly is not advisable as it may further agitate the client. Therefore, the initial action of allowing family members to stay is most likely to provide comfort and reassurance to the client.

5. A healthcare professional is assessing a client with rheumatoid arthritis. Which assessment finding is most characteristic of this disease?

• A. Asymmetrical joint involvement
• B. Heberden's nodes
• C. Morning stiffness lasting more than 30 minutes
• D. Pain that worsens with activity

Correct answer: C

Rationale: Morning stiffness lasting more than 30 minutes is a hallmark symptom of rheumatoid arthritis. This prolonged morning stiffness is typically a distinguishing feature of rheumatoid arthritis compared to other types of arthritis, making it the most characteristic assessment finding for this disease.

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