Audiology and Speech Disorders — Flashcards

Flashcard 21: Which wave of BERA is the most sensitive for determining hearing threshold?

Answer: Wave V

Flashcard 22: _____ can help in early detection of noise-induced hearing loss

Answer: OAEs (Test)

Flashcard 23: Normal threshold for AC on PTA is _____dB

Answer: 25

Extra: According to the WHO and standard ENT textbooks (like Dhingra), the normal hearing threshold is 0–25 dB. Classification of Hearing Loss: - Normal: 0–25 dB - Mild: 26–40 dB - Moderate: 41–55 dB - Moderately Severe: 56–70 dB - Severe: 71–90 dB - Profound: >90 dB *Note: Some classifications (e.g., Clark) use 15 dB as the cutoff for "normal" in children, with 16–25 dB being "slight" hearing loss.*

Flashcard 24: Which objective audiometry test is considered unsuitable for testing hearing in infants and young children because it is affected by sleep and sedation?

Answer: CERA (Cortical Evoked Response Audiometry)

Extra: CERA is a late latency response (LLR) that is highly dependent on the patient's state of alertness and is significantly affected or abolished by sleep and sedation. Since infants and uncooperative children often need to be asleep or sedated for objective testing, CERA is considered unsuitable for them. In contrast, BERA (Brainstem Evoked Response Audiometry) is a short-latency response that is not affected by sleep or sedation, making it the gold standard for objective hearing assessment in children.

Flashcard 25: Short increment sensitivity score (SISI) is a test of intensity discrimination which is _____ in cochlear pathologies

Answer: very high

Flashcard 26: SISI score for retrocochlear hearing loss is _____%

Answer: 0-20

Flashcard 27: Tone stimulus is used for _____

Answer: CERA (CERA/BERA)

Flashcard 28: What is the best audiometric test for screening in neonates, infants, and small children for deafness due to inner ear causes?_____

Answer: OAEs

Flashcard 29: _____ test is a tuning fork test that compares the bone conduction of the patient with that of the examiner

Answer: Schwabach

Flashcard 30: What is the best audiometric test for confirming hearing loss in infants?_____

Answer: BERA