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Airway

In medicine, airway adjunct commonly concerned nasopharyngeal airway and oropharyngeal airway.

      A nasopharyngeal airway, also known as an NPA, nasal trumpet (because of its flared end), or nose hose, a type of airway adjunct, is a tube that is designed to be inserted into the nasal passageway to secure an open airway. When a patient becomes unconscious, the muscles in the jaw commonly relax and can allow the tongue to slide back and obstruct the airway. This makes airway management necessary, and an NPA is one of the available tools. The purpose of the flared end is to prevent the device from becoming lost inside the patient's nose. The correct size airway is chosen by measuring the device on the patient: the device should reach from the patient's nostril to the earlobe or the angle of the jaw. The outside of the tube is lubricated with a water-based lubricant so that it enters the nose more easily. The device is inserted until the flared end rests against the nostril.

     The oropharyngeal airway way is used to treat or prevent tongue is worth to jaws, or upper respiratory tract obstruction due to adhesion to pharynx posterior wall, also can be oropharyngeal airways as a bit closed teeth pad to prevent patients in the interpolation of the endotracheal tube in the mouth. Oral pharyngeal airway can help to attract the mouth pharynx; Assist in the insertion of pharynx and gastric duct.

The position of the mouth and pharyngeal airway is correct and the model should be appropriate, so that the pharyngeal curve is located right in the base of the tongue, and the front end of the ventilator is located near the epiglottis. Patients with a clear or superficial anesthesia and the first four teeth with a high risk of fracture or loss are not allowed to use the mouth - pharyngeal airway.



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