Sudden sensorineural hearing loss (SSNHL) is defined as a loss of ≥30 dB over at least 3 consecutive frequencies occurring within what time frame?

• A Within 24 hours
• B Within 1 week
• C Over 2 weeks
• D Within 72 hours ✓

Explanation

SSNHL is defined as a sensorineural hearing loss of at least 30 dB over 3 or more consecutive audiometric frequencies developing within 72 hours. This definition is used in clinical guidelines (AAO-HNS 2019) to standardise diagnosis and distinguish it from gradually progressive SNHL. Treatment with oral systemic corticosteroids should be initiated within 2–4 weeks of onset for maximum benefit.

Reference: Dhingra Diseases of Ear, Nose and Throat, 7th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.