Following are the laboratory tests for the diagnosis of vestibular dysfunction except: (A) Electronystagmography, (B) Optokinetic test, (C) Galvanic test, (D) Gelle's test
Answer is D. Gelle&;s test compares the intensity of bone-conducted tuning fork sound without and with raising pressure on the tympanic membrane with Siegel&;s speculum. It&;s a test of bone conduction and examines the effect of increased air pressure in ear canal on the hearing. (Ref: Diseases of EAR, NOSE and THROAT by PL DHINGRA; 6TH Edition; Page no 22,447)