AAO-HNSF Certificate Program for Otolaryngology Personnel

When to Mask for Air Conduction? • Three factors

–Intensity of the stimuli –Interaural attenuation –Hearing of the non-test ear

• If the air conduction threshold in the non-test ear  40 dB, MASK.

AAO-HNS/F

Certificate Program for Otolaryngology Personnel Workshop

13

When to Mask for Air Conduction?

Ex. AD/AC – 10 dB, AS/AC – 60 dB

AAO-HNS/F

Certificate Program for Otolaryngology Personnel Workshop

14

Review (Continued) • When to mask?

• FOR AIR CONDUCTION when there is a difference of 40dB or more between two thresholds (that is the test ear and the non-test ear)

AAO-HNS/F

Certificate Program for Otolaryngology Personnel Workshop

15