ENT Otosclerosis 13379e41

In otosclerosis Carhart's notch dips at:

1000 Hz in AC

1000 Hz in BC

2000 Hz in AC

2000 Hz in BC

High-Yield Explanation

(d) 2000HzinBC(Ref. Shambaugh, 6th ed., 532)In otosclerosis the dip at 2000Hz is seen in bone conduction curve which is known as Carhart's notch. Mnemonic: Carhart's in Bone Conduction, CBC.

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In otosclerosis Carhart's notch dips at:

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