Which area is best suctioned by a rigid suction catheter?

• A. Suctioning the oral airway
• B. Suctioning the nose
• C. Suctioning the stoma
• D. Suctioning inside an advanced airway device

Answer: (A)

Rigid suction catheters are most effective for clearing secretions from the mouth and oropharynx because their stiffness gives you precise control and a strong, direct path to sweep the back of the tongue and the posterior throat. The mouth offers a straight, open route that lets the rigid tip reach and remove thick secretions efficiently. In contrast, suctioning through the nose involves curved, narrow passages that are better handled with a flexible catheter to minimize trauma and to navigate the nasal and pharyngeal anatomy. Suctioning a stoma or through an advanced airway requires equipment designed to pass safely through lumens and into the lower airway, typically with flexible catheters that won’t kink or damage the tube.