Circle the type of hearing loss associated with each of the following tea result
ID: 53596 • Letter: C
Question
Circle the type of hearing loss associated with each of the following tea results. In the Barany's test, extraocular eye muscles were stimulated to help maintain a visual fixation point. Identify the extraocular muscles that were used and the cranial nerve that innervates each. Indicate the direction of eye movement in each of the following when the subject is rotated to his/her right. Rotational nystagmus: Fast eye movement Slow eye movement Postroiational nystagmus: Fast eye movement Slow eye movementExplanation / Answer
Q7.
1. Rinne's test -----> Conductive hearing loss
2. Weber's hearing test (sound lateralizes to the affected ear) ------> Conductive hearing loss
3. Weber's hearing test (sound lateralizes to the normal ear) ----------> Sensorineural hearing loss
Rinne test is useful for comparing the bone and air conduction hearing. A tuning fork apparatus is used in this test, which has two metal handles. Striking the metal handles produces vibrations and sound waves with a certain frequency. The handle of vibrating fork is placed on the person’s bony mastoid process (to test bone conduction). After some time, no sound is audible, and then the vibrating process is placed close the “auditory canal of the person’s ear.” If the person hears sound again (by air conduction), then it can be concluded that his hearing is not impaired.
After some time, no sound is heard by the person. Again place the tuning fork on the mastoid process, to the bone conduction. If the person hears the sound again, after hearing by air conduction is lost, then this indicates, that the person is having some hearing problem.
Weber test is used to determine the conduction and sensorineural deafness. In this test, the tuning fork apparatus is stroked and placed on the persons head. The loudness of the sound felt by both the ears is compared, if the person feels equally loud by both the ears, the hearing is normal.