Hearing Tests Flashcards
1
Q
What is the Rinne test? How can you interpret its findings?
A
- Tuning fork placed on mastoid and then when no longer heard moved to beside the pinna of the ear
- Perform in conjunction with a Weber test
- If the AC is louder than BC (positive Rinne) either the ear is normal or there is a sensorineural defect (decreasing AC and BC equally)
- If the BC is louder than the AC (negative Rinne) then there is a conduction defect as bone transmission to the nerve is intact
2
Q
What is the Weber test? How can you interpret its findings?
A
- Tuning fork placed in the centre of the forehead
- Lateralisation towards an affected ear indicates conductive hearing loss (bone conduction to nerve intact)
- Lateralisation towards the unaffected ear indicates sensorineural hearing loss
- Confirm with a follow-up Rinne test