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. After a thoracentesis, a healthcare provider assesses a client. Which assessment finding warrants immediate action?

• A. The client rates pain as 5/10 at the site of the procedure.
• B. A small amount of drainage is noted from the site.
• C. Pulse oximetry reads 93% on 2 liters of oxygen.
• D. The trachea is deviated toward the opposite side of the neck.

Correct answer: D

Rationale: A deviated trachea indicates a tension pneumothorax, a life-threatening emergency. This condition can rapidly lead to respiratory failure and requires immediate intervention. The other assessment findings, such as pain level, mild drainage, and slightly decreased oxygen saturation, are within an expected range after a thoracentesis and do not indicate an immediate threat to the client's life.

3. How does the pain of a myocardial infarction (MI) differ from stable angina?

• A. Accompanied by shortness of breath
• B. Feelings of fear or anxiety
• C. Lasts about 3-5 minutes
• D. Relieved by taking nitroglycerin

Correct answer: A

Rationale: The pain of an MI is often accompanied by shortness of breath and feelings of fear or anxiety. It typically lasts longer than 15 minutes and is not relieved by nitroglycerin. Unlike stable angina, the pain of an MI occurs without a known cause such as exertion.

4. The client with a chest tube after a coronary artery bypass graft has significantly slowed drainage. What action is most important for the nurse to take?

• A. Increase the setting on the suction.
• B. Notify the provider immediately.
• C. Re-position the chest tube.
• D. Take the tubing apart to assess for clots.

Correct answer: B

Rationale: If the drainage from the chest tube decreases significantly, it may indicate a blockage by a clot, potentially leading to cardiac tamponade. The nurse's priority action should be to notify the healthcare provider immediately for further evaluation and intervention. Increasing suction, re-positioning the chest tube, or disassembling the tubing independently are not appropriate actions without healthcare provider guidance in this situation.

5. A client had an evacuation of a subdural hematoma. Which of the following actions should the nurse take first?

• A. Observe for cerebrospinal fluid (CSF) leaks from the evacuation site.
• B. Assess for an increase in temperature.
• C. Check the oximeter.
• D. Monitor for manifestations of increased intracranial pressure.

Correct answer: C

Rationale: When caring for a client who had an evacuation of a subdural hematoma, the nurse's priority is to check the oximeter. Monitoring oxygen saturation is crucial to ensure adequate tissue oxygenation, especially after such a procedure. This assessment helps in early detection of hypoxemia, which can be detrimental to the client's recovery. While observing for CSF leaks, assessing for temperature changes, and monitoring for signs of increased intracranial pressure are important, checking the oximeter takes precedence to address immediate oxygenation needs.

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