Process diagram of removing a fish bone using a laryngoscope

If a fish bone becomes lodged during eating, prompt medical attention is required. The fish bone can be removed under laryngoscopy, a procedure consisting of anesthesia, examination, and removal, as detailed below:

1. Anesthesia: The patient lies flat and opens the mouth. The doctor sprays a small amount of lidocaine into the pharynx for local anesthesia. After confirming there is no allergic or other adverse reaction, the medication is further sprayed onto the oropharynx, base of the tongue, and laryngeal areas.

2. Examination: The doctor stabilizes the patient's head with the left hand and supports the occipital region with the right hand. The patient is instructed to take deep breaths. After the tongue is secured, the laryngoscope is inserted through the patient's mouth into the pharynx.

3. Removal: Under laryngoscopic visualization, the doctor identifies the location of the fish bone and uses foreign body forceps to remove it.