Correct Answer: D

Rationale: When a client's heart rate increases and becomes irregular during suctioning of an endotracheal tube, it indicates potential hypoxemia. Performing pre-oxygenation before suctioning helps prevent hypoxemia and subsequent dysrhythmias. This intervention ensures that the client has adequate oxygen reserves before the procedure, reducing the risk of complications related to suctioning.

Correct Answer: D

Rationale: Encouraging the client to drink 2 to 3 liters of water daily helps to thin bronchial secretions, making them easier to expectorate. This can assist the client in coughing up the tenacious secretions. Maintaining a semi-Fowler's position can aid in improving lung expansion but may not directly address the issue of clearing the secretions. Administering oxygen via nasal cannula at 2 L/min can help improve oxygenation but does not specifically target the removal of bronchial secretions. Selecting a low-salt diet is important for overall health, but it does not directly address the client's immediate concern of clearing the bronchial secretions.

Correct Answer: A

Rationale: Preventing aspiration is the priority for a client with intermaxillary fixation following mandibular surgery. Aspiration can occur due to difficulty swallowing or improper positioning, posing a serious risk to the client's respiratory status. It is crucial for the nurse to ensure that the client's airway is clear and that they are positioned correctly to prevent any potential aspiration events.

Correct Answer: C

Rationale: Chronic bronchitis is often linked to smoking. Smoking cessation is the most effective preventive measure to reduce the risk of developing chronic bronchitis. Smoking damages the airways and leads to inflammation, making individuals more susceptible to chronic bronchitis. While maintaining an ideal weight, getting an annual influenza vaccine, and engaging in regular moderate exercise are beneficial for overall health, the most crucial intervention to prevent chronic bronchitis is quitting smoking.

Correct Answer: A

Rationale: The movement of the trachea toward the unaffected side is concerning as it can indicate a tension pneumothorax, a life-threatening emergency that requires immediate intervention. The trachea should be midline, so any deviation should be reported promptly to the provider for further evaluation and intervention.