A nurse is assessing a patient who has been using a nasal cannula for oxygen therapy. The patient complains of nasal dryness and irritation. What intervention should the nurse implement?

A humidifier.

Choice A rationale:

A humidifier is necessary to prevent complications in a patient receiving oxygen therapy via a tracheostomy collar. Oxygen delivered through a tracheostomy can dry out the airways and cause discomfort and potential complications. Adding humidity helps maintain airway moisture and prevents drying of the mucous membranes, reducing the risk of mucus plugs and irritation.

Choice B rationale:

A water seal is not necessary for a patient receiving oxygen therapy via a tracheostomy collar. Water seals are used in chest drainage systems to prevent air from entering the pleural space, but they are not relevant in this scenario.

Choice C rationale:

A suction catheter is used to clear secretions from the airway but is not directly related to preventing complications with oxygen therapy via a tracheostomy collar.

Choice D rationale:

A chest tube is not needed for a patient receiving oxygen therapy via a tracheostomy collar. Chest tubes are inserted to drain fluid or air from the pleural space, which is not applicable to this situation.

Choice A rationale:

Switching to a simple face mask is not the appropriate intervention for nasal dryness and irritation. A simple face mask covers the nose and mouth, and it may not provide enough relief for nasal dryness as the oxygen flow is still directed towards the nose.

Choice B rationale:

Increasing the flow rate of oxygen will not directly improve humidity. Nasal dryness and irritation are often caused by the lack of moisture in the delivered oxygen. Increasing the flow rate may worsen the issue.

Choice C rationale:

Assessing the patient's nares for patency and skin integrity is the appropriate intervention. Nasal dryness and irritation can be caused by inadequate humidification of the oxygen. Checking the patency of the nares and the condition of the skin can help identify any issues that may be contributing to the discomfort.

Choice D rationale:

Reassuring the patient that nasal dryness is a normal side effect is not sufficient. While nasal dryness can be a common side effect of using a nasal cannula, it is essential to address the issue and provide appropriate interventions to alleviate the discomfort and prevent complications.