A nurse is performing nasopharyngeal suctioning for an adult client. Which of the following techniques should the nurse use?

A. Apply intermittent suction for 30 seconds. Suctioning should not exceed 10-15 seconds to minimize hypoxia and irritation to the airway. Continuous suctioning for 30 seconds can lead to discomfort and inadequate oxygenation. B. Apply suction while inserting the catheter. Suction should not be applied while inserting the catheter. This technique can cause trauma to the mucosa and prevent effective suctioning. Suction should only be applied once the catheter is in the desired position. C. Insert the catheter 10 cm (4 in). The appropriate insertion depth for nasopharyngeal suctioning is typically 12-15 cm (5-6 in) for adults. Inserting the catheter to the proper depth ensures effective suctioning of secretions while minimizing the risk of injury. D. Wait 1 min between suctioning attempts. Waiting 1 minute between suctioning attempts is essential to allow for adequate oxygenation and to prevent trauma to the airway. This interval allows the client to recover and ensures the airway is not overly irritated or compromised.