Final answer:
The patient is experiencing a severe form of choking called complete airway obstruction. Immediate action needs to be taken to help the patient breathe again.
Step-by-step explanation:
Based on the symptoms described, the patient is most likely experiencing a severe form of choking called complete airway obstruction, which occurs when the airway is completely blocked. The high-pitched sound, blue face and lips, and grasping of the neck are all indicative of oxygen deprivation. Immediate action needs to be taken to help the patient breathe again.
To aid the patient, the Heimlich maneuver should be performed. This involves standing behind the patient, making a fist with one hand and placing it above the navel, then using the other hand to provide forceful upward pressure on the abdomen. This helps to expel the object causing the obstruction and restore airflow.