Ear, nose and throat mcq

  1. Use of nitrous oxide is contraindicated in?
    a. cochlear implant
    b. microlaryngeal surgery
    c. vitreoretinal surgery
    d. exentration operation

  2. All are true about nasolabial cyst except?
    a. arises from odontoid epithelium
    b. usually bilateral
    c. presents submucosally in anterior nasal floor
    d. usually presents in adulthood

  3. Microwick microcatheter sustained release preparation is used in?
    a. medication to round window
    b. control of epistxis
    c. freis syndrome
    d. drooling of saliva