A nurse is assessing equipment needs in order to perform tracheostomy suctioning on a client. Which of the following pieces of equipment should the nurse gather for the procedure?

A. Sterile water: Sterile water is needed to flush the suction catheter and maintain a clear airway during tracheostomy suctioning. It helps prevent contamination and ensures effective removal of secretions while minimizing infection risk. B. Yankauer catheter: A Yankauer catheter is used for oropharyngeal suctioning, not for suctioning a tracheostomy. Using this catheter on a tracheostomy would be ineffective and could cause trauma to the tracheal tissue. C. Nasal cannula: A nasal cannula provides supplemental oxygen but is not required specifically for the suctioning procedure. Oxygen delivery may be necessary if the client desaturates, but it is not part of the core suctioning equipment. D. Pulse oximeter: The pulse oximeter is a monitoring device used to track the client's oxygen saturation and heart rate during the procedure to assess for complications (like hypoxia or bradycardia). It is not the active equipment gathered to perform the suctioning.