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.

Correct Answer: B

Rationale: When encountering a choking individual, the nurse should first assess the person's ability to speak. If the person can speak, it indicates that their airway is partially obstructed, allowing some air to pass. In this case, encouraging the person to continue coughing and monitoring them closely may be appropriate. If the person cannot speak, it may suggest a complete airway obstruction and immediate intervention is required. Instructing the person to call 911 (Choice A) may be necessary if the situation worsens. Using the jaw-thrust maneuver (Choice C) is not appropriate for a choking victim. Performing abdominal thrusts (Choice D) is typically recommended for conscious choking victims, not chest compressions.

Correct Answer: A

Rationale: In cardiogenic pulmonary edema, the priority intervention is to improve oxygenation and reduce the workload on the heart. Providing supplemental oxygen at 5 L/min via facemask helps increase oxygen levels and alleviate respiratory distress. This intervention can help improve oxygen saturation, alleviate dyspnea, and support the client's respiratory function. Placing the client in a high-Fowler's position with legs dependent can also help with respiratory effort, but ensuring adequate oxygenation takes precedence. Sublingual nitroglycerin and IV morphine sulfate are commonly used interventions for cardiac-related conditions, but in this case, addressing oxygenation is the priority to prevent further deterioration.

Correct Answer: A

Rationale: Respiratory acidosis is a condition characterized by increased carbon dioxide levels in the blood, resulting in acidosis. One of the potential consequences of respiratory acidosis is the development of electrolyte imbalances, particularly hyperkalemia. Hyperkalemia can lead to cardiac conduction abnormalities, manifested as widened QRS complexes on an electrocardiogram (ECG). Therefore, in a client with respiratory acidosis, the healthcare professional should expect to find widened QRS complexes as a result of the associated hyperkalemia.

Correct Answer: C

Rationale: Following a bronchoscopy, the priority for the nurse is to confirm the gag reflex in the older adult client. This is crucial to ensure that the client's airway is protected and free from any obstruction or aspiration. Monitoring the gag reflex helps in preventing complications such as aspiration pneumonia. While auscultating breath sounds, observing for confusion, and measuring blood pressure are important assessments, confirming the gag reflex takes precedence in this situation to maintain airway patency and prevent potential respiratory complications.