Chapter 17 Otorhinolaryngologic with correct answers 100% 2025/2026

Chapter 17 Otorhinolaryngologic with correct answers 100% 2025/2026 Which laser is useful in middle ear procedures - Correct Answer argon laser What are the reasons for reversing the operating table during ear surgery? - Correct Answer the patients head is placed at the foot, allowing space under the foot portion of the table to accomodate the legs of any seated team members and permit proper equipment placement why is nitrous oxide restricted during reconsturctive - Correct Answer nitrous oxide cause expansion of the middle ear and can cause dislocation of a tympanic membrane graft what is the most common cause of otitis media? - Correct Answer Otitis media is a common acute inflammation of the middle ear. it is usually initiated by blockage of the auditory tube causing and accumulation of fluid that would otherwise be drained into the nasopharnyx what is the purpose of a myringotomy? where is the incision made ? - Correct Answer to remove accumulated fluid and insert a PE tube to allow for additional drainage and maintain the pressure equalization. the incision is made in the inferior posterior portion of the tympanic membrane called pars tensa why would you add an ototome to a tympanoplasty setup and complete a postauricular or retroauricular incision - Correct Answer An ototome (ear drill) and postauricular incision are needed for a mastoidectomy due to extended disease into the mastoid sinus what source of energy will be needed to operate the rotating drill - Correct Answer the drill may be powered electrically or pneumatically with nitrogen what may be used to hold implants in place or to fill the mastoid sinus? what is used to place it? - Correct Answer Gelfoam sponge is used, which is cut into small pieces and placed with an alligator forceps. Gelfoam can be used dry or soaked in saline, epinephrine, or an antibiotic solution patient presents with earache, headache, purulent discharge from the ear, hearing loss, dizziness, and weakness of the facial muscles due to damage to the 7th cranial nerve. What is used to remove it? name the nerves located with the nerve monitor. - Correct Answer A cholesteatoma could cause the symptoms and is removes using a rosen needle and picks. A nerve monitor is used to locate the facial (7th cranial) and the acoustic (8th cranial) nerves to prevent injury What is a bony overgrowth surrounding the stapes that prevents vibrations of the ossicles? what procedure is done to remove it? - Correct Answer Otosclerosis, which is a build up of spongy bone that fuses the ossicles, a stapedectomy can be done to remove it