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. A nurse is observing the closed chest drainage system of a client who is 24 hr post thoracotomy. The nurse notes slow, steady bubbling in the suction control chamber. Which of the following actions should the nurse take?

• A. Check the tubing connections for leaks.
• B. Check the suction control outlet on the wall.
• C. Clamp the chest tube.
• D. Continue to monitor the client's respiratory status.

Correct answer: A

Rationale: In a closed chest drainage system, slow, steady bubbling in the suction control chamber is an expected finding, indicating proper functioning of the system. There is no immediate need for intervention as this indicates the system is working as intended. The nurse should continue to monitor the client's respiratory status for any signs of distress or changes. Checking tubing connections for leaks or clamping the chest tube are unnecessary actions based on the information provided. Checking the suction control outlet on the wall is also not indicated in this scenario.

4. A healthcare professional is caring for a client who has just developed a pulmonary embolism. Which of the following medications should the healthcare professional anticipate administering?

• A. Furosemide
• B. Dexamethasone
• C. Heparin
• D. Atropine

Correct answer: C

Rationale: In the scenario of a pulmonary embolism, the priority medication to administer is Heparin. Heparin is an anticoagulant that helps prevent the formation of new blood clots and the growth of existing ones, which is crucial in managing pulmonary embolism. Furosemide is a diuretic used to treat fluid retention, Dexamethasone is a corticosteroid used for inflammation, and Atropine is an anticholinergic medication used for various purposes such as treating bradycardia.

5. 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.

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