What size catheter should be used to suction an adult's airway?

The Importance of Using the Correct Size Catheter for Airway Suctioning

Choosing the right size of catheter for suctioning an adult's airway is crucial in ensuring the safety and effectiveness of the procedure. Using a catheter that is too small may not effectively remove secretions, while using one that is too large can cause discomfort and potential harm to the patient.

It is recommended that an adult's airway should be suctioned with a 12–14 French (Fr)-size catheter. This range is considered optimal for balancing effective suctioning with patient comfort during the procedure.

Avoiding complications is another important reason to use the correct catheter size. Oversized catheters can potentially damage the airway, leading to complications such as bronchospasms and decreased oxygenation. On the other hand, undersized catheters may not effectively clear secretions, compromising the patient's respiratory function.

Factors to consider when selecting the catheter size include the viscosity of the secretions and the size of the patient's airway. It is essential to ensure that the catheter size does not exceed half of the internal diameter of the endotracheal or tracheostomy tube to allow for adequate airflow during suctioning.

By using the correct size catheter for airway suctioning in adults, healthcare providers can effectively clear secretions while minimizing the risk of complications and ensuring the patient's comfort and safety.