Final answer:
Using a rigid suction catheter when treating infants and young children can risk stimulation of the back of the throat, potentially causing obstruction of the airway.
Step-by-step explanation:
Utilizing a rigid suction catheter when treating infants and young children can stimulate the back of the throat, which can lead to the patient's tongue entering the air passage. This can be dangerous as it can cause obstruction of the airway and difficulty breathing. It is important to use safe and appropriate techniques to minimize the risk of complications during suctioning in infants and young children.