Final answer:
The recommended suctioning period for a client's respiratory tract should not exceed 10 to 15 seconds to avoid hypoxia and mucosal injury.
Step-by-step explanation:
When suctioning the respiratory tract of a client, it is imperative to limit the time to prevent hypoxia and potential injury to the mucosa. The recommended duration for suctioning should not exceed 10 to 15 seconds. It is essential to monitor the client's response throughout the procedure and provide supplemental oxygen as needed.