ATI Detailed Answer Key Medical Surgical

Correct Answer: A

Rationale: Arterial blood gases are crucial to assess postoperatively in a client who has undergone thoracotomy and lobectomy to monitor oxygenation and ventilation status. Changes in arterial blood gases can indicate respiratory complications or inadequate gas exchange, which are critical issues that need prompt intervention to prevent further complications. While urinary output, chest tube drainage, and pain level are important assessments, monitoring arterial blood gases takes precedence in this specific postoperative scenario to ensure optimal respiratory function and overall patient well-being.

Correct Answer: D

Rationale: In a client following a partial laryngectomy, the priority assessment is always airway patency. This is crucial to ensure that the client can breathe adequately and prevent any complications related to airway obstruction. Monitoring airway patency takes precedence over other assessments such as pain severity, wound drainage, and tissue integrity. Any compromise in airway patency requires immediate intervention to maintain the client's respiratory function and safety.

Correct Answer: D

Rationale: Gastroenteritis can lead to fluid loss through vomiting and diarrhea, especially when accompanied by fever. Fever can increase insensible water loss through sweating as well. Both vomiting and diarrhea can significantly contribute to fluid volume deficit, making the client with gastroenteritis and fever at higher risk compared to the other clients described in the options.

Correct Answer: D

Rationale: In a client with a sucking chest wound, the priority is to administer oxygen via nasal cannula to improve oxygenation. The client's blood pressure, weak pulse rate, and elevated respiratory rate indicate hypovolemic shock, so increasing oxygen supply is crucial. Raising the foot of the bed, removing the dressing, or preparing to insert a central line are not immediate actions needed for a client with a sucking chest wound and signs of shock.

Correct Answer: B

Rationale: Continuous bubbling in the water-seal chamber indicates an air leak, which can compromise the system's integrity and affect the client's respiratory status. The other options are expected findings in a client with a chest tube drainage system: constant bubbling in the suction-control chamber indicates proper suction function, bloody drainage in the collection chamber is expected in the immediate postoperative period, and fluid-level fluctuations in the water-seal chamber demonstrate normal drainage and lung re-expansion.