Why Suction Matters
Blood, vomitus, and secretions can block the airway and cause aspiration. Suctioning is often the first step before any ventilation attempt, because pushing air past fluid only moves it deeper into the lungs.
Time and Pressure Limits
Limit suction attempts to about 15 seconds for adults, 10 seconds for children, and 5 seconds for infants. Hypoxia, bradycardia, and vagal stimulation can occur with prolonged suctioning. Use a rigid tonsil tip for the oropharynx and a soft catheter for the nasopharynx or through an advanced airway.
Practical Tips
Measure the catheter from the corner of the mouth to the earlobe so you do not insert it too deep. Apply suction only as you withdraw, and preoxygenate the patient before and after each attempt. If vomitus is copious, log roll the patient and clear the airway from the side while maintaining spinal precautions as needed.