How to Use a Suction Device and Important Precautions

A suction device effectively removes airway secretions using negative pressure, thereby maintaining airway patency. The procedure for using a suction device is as follows:

1. Communicate with the patient prior to suctioning, explaining the procedure and its purpose to obtain their cooperation;

2. Position the patient supine. Inspect the integrity of the oral and nasal mucosa; dentures must be removed from patients who wear them;

3. Open the suction catheter and connect it securely to the suction device’s tubing. After powering on the device, perform a test suction using a small amount of normal saline to confirm catheter patency;

4. Insert the suction catheter via the buccal region of the mouth into the pharynx, advancing it to a depth of 14–16 cm. Gently rotate the catheter while withdrawing it upward to aspirate secretions. Each suctioning episode must not exceed 15 seconds;

5. Upon completion of suctioning, clean the patient’s mouth and nose.

Note: Each suctioning episode must not exceed 15 seconds to prevent injury to the respiratory mucosa. Additionally, closely monitor the patient’s vital signs throughout the suctioning procedure.