ENT A Blom-Singer prosthesis is used: A As a ventilation tube in otitis media with effusion B To close a perforation in nasal septum C To divert tracheal air into oesophagus for voice production in laryngeal patients D In stapedectomy to conduct sound from incus to oval window π‘ Explanation A Blom-Singer prosthesis is used: β Correct Answer: C. To divert tracheal air into oesophagus for voice production in laryngeal patients