Most common frequency of Tuning fork used in ENT: (A) 256 Hz, (B) 512 Hz, (C) 1024 Hz, (D) 2048 Hz
Answer is B. Tuning fork test can be performed using tuning fork of different frequencies such as:
. • MC used/ ideal for routine clinical practice is of 512 Hz.
• Tuning fork of lower frequencies produce sense of bone vibration while those of higher frequencies have a shorter decay time and are thus not routinely preferred.
• Tests done with tuning fork:
■ Rinne’s test
■ Weber's test
■ Absolute bone conduction (ABC) test
■ Bing test
■ Gelle’s test
■ Lewis test