When performing suctioning, how long should suction be applied during catheter withdrawal?

The correct approach for suctioning during catheter withdrawal is to apply suction for up to 10 seconds. This duration is optimal for effectively clearing secretions while minimizing the risk of hypoxia and tissue trauma for the patient.

When suction is applied for longer than 10 seconds, it can lead to decreased oxygen saturation levels and increased patient discomfort. The goal is to ensure that the procedure is efficient and safe, maintaining airway patency while preventing adverse effects. Additionally, the 10-second timeframe allows enough time to remove secretions without overstressing the airway tissues.

The other options suggest longer durations of suction application, which could increase the likelihood of complications such as hypoxia or irritation of the respiratory mucosa. Keeping suctioning within the 10-second mark helps to achieve the best balance between efficacy and safety.