In cases of partial or complete airway obstruction, the casualty may experience agitation, cyanosis, confusion, or even unconsciousness, dyspnea, or high-pitched breathing noises such as stridor, wheezing, snoring, or gurgling sounds.

If you see something in the casualty's mouth (such as foreign material, loose teeth, dentures, facial bone, or vomitus) that could block their airway, use your fingers to remove the material as quickly as possible.

DO NOT perform a blind finger sweep if no foreign body is seen in the casualty’s mouth.