How are suction catheters identified?

Suction catheters are identified by a number called "French." This system measures the outer diameter of the catheter in millimeters. The French size corresponds directly to the diameter, where one French unit is equal to 0.33 millimeters. For example, a catheter labeled as 8 French has an outer diameter of approximately 2.67 millimeters. This standardized size system allows healthcare providers to select the appropriate catheter based on the patient's needs and the specific procedure being performed, ensuring effective suctioning while minimizing the risk of complications such as trauma to the tissues or the airway.

Utilizing the French measurement is a widely accepted practice, fostering a common understanding among healthcare professionals regarding catheter sizes and facilitating consistent communication in clinical settings. While other identifying methods may exist, such as color coding or brand names, these do not provide a standard size reference like the French gauge does, which is crucial for clinical accuracy and safety.