Rehabilitation of Hearing-Impaired Children — MCQs
Which of the following statements about Bone Anchored Hearing Aids (BAHA) is true?
A patient with schizophrenia demonstrates significant difficulty in maintaining meaningful social interactions. The most appropriate initial management approach is:
What does the term 'Total Communication' refer to in the context of deaf education?
Which of the following statements concerning sensorineural hearing loss in children with bacterial meningitis are TRUE?
A child aged 3 yrs, presented with severe sensorineural deafness was prescribed hearing aids, but showed no improvement. What is the next line of management:
Which of the following is used for initial screening of auditory function in a neonate?
Hearing loss of 65dB, what is the grade of deafness?
Lombard's test is used to diagnose which condition?
In infants, what is the most sensitive audiometric screening method?
According to WHO classification, severe degree of hearing impairment occurs at -
Rehabilitation of Hearing-Impaired Children Indian Medical PG Practice Questions and MCQs
Question 1: Which of the following statements about Bone Anchored Hearing Aids (BAHA) is true?
- A. It transmits sound through air conduction, making it ideal for sensorineural hearing loss.
- B. It is useful in patients with canal atresia and microtia. (Correct Answer)
- C. It is used after surgery for acoustic neuroma in neurofibromatosis type 2.
- D. It is beneficial for patients with bilateral severe sensorineural hearing loss.
Explanation: ***It is useful in patients with canal atresia and microtia.*** - BAHA operates by **bone conduction**, bypassing the external auditory canal and middle ear structures. - This makes it an ideal solution for conductive hearing loss caused by malformations like **canal atresia** and **microtia**, where air conduction is impaired. - BAHA is particularly effective when the cochlea is functional but sound cannot reach it via normal air conduction pathways. *It transmits sound through air conduction, making it ideal for sensorineural hearing loss.* - This statement is incorrect on both counts. - BAHA uses **bone conduction**, not air conduction. - BAHA is primarily indicated for **conductive or mixed hearing loss**, not sensorineural hearing loss, as it requires a functional cochlea. *It is used after surgery for acoustic neuroma in neurofibromatosis type 2.* - After acoustic neuroma surgery, especially in Neurofibromatosis type 2, the primary concern is often **unilateral sensorineural hearing loss** or **single-sided deafness**. - While BAHA can be used for single-sided deafness, the first-line option for single-sided deafness is **Cochlear Implants (CIs)** or contralateral routing of signal (CROS) hearing aids. *It is beneficial for patients with bilateral severe sensorineural hearing loss.* - For **bilateral severe sensorineural hearing loss**, the primary intervention is typically **cochlear implantation**, not BAHA. - BAHA is less effective for severe sensorineural loss because it still relies on a functional cochlea to convert bone-conducted vibrations into neural signals.
Question 2: A patient with schizophrenia demonstrates significant difficulty in maintaining meaningful social interactions. The most appropriate initial management approach is:
- A. Individual psychotherapy
- B. Social skills training (Correct Answer)
- C. Family psychoeducation
- D. Cognitive remediation therapy
Explanation: ***Social skills training*** - **Social skills training (SST)** is the most appropriate initial management because it directly addresses the patient's difficulty in maintaining meaningful social interactions by teaching specific social behaviors and communication skills. - SST helps individuals with schizophrenia learn to interpret social cues, engage in conversations, and build relationships, which are key areas of deficit in their social functioning. *Individual psychotherapy* - While individual psychotherapy can be beneficial for managing symptoms and coping strategies, it may not be the most effective initial approach for directly improving concrete **social interaction skills** in schizophrenia. - Psychotherapy often focuses on internal processes, whereas the primary problem here is external social engagement. *Family psychoeducation* - **Family psychoeducation** is crucial for supporting the family and providing them with information about schizophrenia, reducing relapse rates, and improving family coping. - However, it does not directly teach the patient the necessary skills to improve their own **social interactions**. *Cognitive remediation therapy* - **Cognitive remediation therapy (CRT)** aims to improve cognitive functions such as attention, memory, and executive function, which can indirectly impact social functioning. - While beneficial, CRT does not directly teach specific **social interaction behaviors** and would typically be used in conjunction with, or after, more direct social skill interventions.
Question 3: What does the term 'Total Communication' refer to in the context of deaf education?
- A. Utilizing various communication methods for advertising purposes.
- B. Employing multiple communication methods for educational purposes in schools.
- C. Engaging various communication methods for community involvement.
- D. Using all available communication methods to educate a deaf child. (Correct Answer)
Explanation: ***Using all available communication methods to educate a deaf child.*** - **Total Communication** is an approach in deaf education that emphasizes using all available modalities to facilitate language acquisition and communication for deaf children. - This can include **speech, lip-reading, written language, finger-spelling, and sign language** (such as ASL or Manually Coded English). *Utilizing various communication methods for advertising purposes.* - This option describes a general marketing strategy and is not specific to the educational methods for deaf individuals. - It does not relate to the specific pedagogical approach implied by "Total Communication" in deaf education. *Employing multiple communication methods for educational purposes in schools.* - While this option mentions education and multiple methods, it is too broad and does not specifically address the context of deaf education. - It could refer to general teaching strategies for hearing students rather than the specialized approach for deaf learners. *Engaging various communication methods for community involvement.* - This describes a strategy for public engagement or outreach, not an educational methodology for deaf children. - It does not align with the core principle of Total Communication, which is focused on the individual learning needs of a deaf child.
Question 4: Which of the following statements concerning sensorineural hearing loss in children with bacterial meningitis are TRUE?
- A. It occurs rarely (less than 5% of cases)
- B. Its onset often is late in the clinical course, after discontinuation of antimicrobial therapy
- C. Prompt institution of antimicrobial therapy appears not to influence the incidence (Correct Answer)
- D. It occurs more commonly when Haemophilus influenza type B rather than Streptococcus pneumoniae is the causative organism of the meningitis
Explanation: ***Prompt institution of antimicrobial therapy appears not to influence the incidence*** - While prompt antibiotic therapy is crucial for overall outcomes in **bacterial meningitis**, studies have shown it does not consistently reduce the risk or incidence of **sensorineural hearing loss**. - **Hearing loss** often results from direct damage to the cochlea or auditory nerve by inflammatory mediators and bacterial toxins early in the disease process, which may occur before antibiotics can fully mitigate the damage. *It occurs rarely (less than 5% of cases)* - **Sensorineural hearing loss** is a common and significant complication of **bacterial meningitis**, occurring in approximately **10-30%** of pediatric cases, not rarely. - This high incidence makes it a leading cause of acquired **hearing impairment** in children. *Its onset often is late in the clinical course, after discontinuation of antimicrobial therapy* - The onset of **sensorineural hearing loss** typically occurs **early** in the disease course, often during the acute phase of meningitis. - It results from direct damage to the **cochlea** or auditory nerve due to intense inflammation and the toxic effects of bacteria. *It occurs more commonly when Haemophilus influenza type B rather than Streptococcus pneumoniae is the causative organism of the meningitis* - Historically, **Haemophilus influenzae type B (Hib)** was a major cause of hearing loss following meningitis, but the introduction of the Hib vaccine has significantly reduced its incidence. - Currently, **Streptococcus pneumoniae (pneumococcus)** is more commonly associated with **sensorineural hearing loss** in bacterial meningitis cases.
Question 5: A child aged 3 yrs, presented with severe sensorineural deafness was prescribed hearing aids, but showed no improvement. What is the next line of management:
- A. Conservative
- B. Fenestration surgery
- C. Stapes mobilisation
- D. Cochlear implant (Correct Answer)
Explanation: ***Cochlear implant*** - For **severe sensorineural deafness** where conventional hearing aids provide no benefit, a cochlear implant is the most effective next step for restoring hearing. - A cochlear implant directly stimulates the **auditory nerve**, bypassing damaged hair cells in the cochlea, which is crucial for severe sensorineural hearing loss. - In children aged **12 months to 5 years**, early cochlear implantation is critical for optimal **speech and language development**. *Conservative* - This typically refers to observation or non-invasive treatments like hearing aids, which have already failed in this case. - Continuing a conservative approach would delay effective intervention for severe deafness, potentially impacting the child's **speech and language development**. *Fenestration surgery* - This is a surgical procedure primarily used for some types of **conductive hearing loss**, especially **otosclerosis**, by creating an opening in the bony labyrinth. - It is not indicated for **sensorineural deafness**, as the problem lies with the inner ear or auditory nerve, not the sound conduction pathway. *Stapes mobilisation* - This procedure aims to restore mobility to the **stapes bone** in cases of **otosclerosis**, a form of conductive hearing loss where the stapes becomes fixed. - It is not appropriate for **sensorineural hearing loss**, where the primary issue is damage to the inner ear's sensory cells or the auditory nerve.
Question 6: Which of the following is used for initial screening of auditory function in a neonate?
- A. Otoacoustic emission (OAE) (Correct Answer)
- B. Auditory brainstem response (ABR)
- C. Pure tone audiometry (PTA)
- D. Free field audiometry
Explanation: ***Otoacoustic emission (OAE)*** - **OAE** is the **gold standard for universal newborn hearing screening (UNHS)** programs worldwide due to its **non-invasive nature**, speed, and cost-effectiveness. - The test measures **sound waves produced by the outer hair cells of the cochlea** in response to auditory stimuli, indicating normal cochlear function. - **Quick to perform (2-3 minutes)**, requires minimal cooperation, and can be done while the infant is sleeping. *Auditory brainstem response (ABR)* - While **ABR** is a definitive diagnostic test for hearing loss, it is typically used as a **second-stage test** if an OAE screening fails, rather than the initial screening tool. - ABR measures the **brain's response to sound**, providing information about the neural pathway from the cochlea to the brainstem. - More **time-consuming and expensive** than OAE, making it less suitable for mass screening. *Pure tone audiometry (PTA)* - **PTA** requires active participation and understanding of instructions, making it **unsuitable for neonates** and young children. - This test is primarily used for **older children (typically >4 years) and adults** to determine hearing thresholds across various frequencies. *Free field audiometry* - **Free field audiometry** involves presenting sounds through loudspeakers to assess hearing, but it is **not suitable for precise threshold determination** in neonates due to their inability to localize sounds reliably or respond consistently. - It's mainly used for behavioral observation audiometry in older infants (6-24 months), but **not as a primary screening method** for neonates.
Question 7: Hearing loss of 65dB, what is the grade of deafness?
- A. Mild
- B. Moderate
- C. Severe
- D. Moderately severe (Correct Answer)
Explanation: ***Moderately severe*** - A hearing loss of **65 dB** falls within the range defined as moderately severe. - The moderately severe range typically spans from **56 dB to 70 dB** in conventional audiometric classifications. *Mild* - **Mild hearing loss** is characterized by a threshold between **26 dB and 40 dB**. - Individuals with mild hearing loss may struggle with soft sounds or speech in noisy environments. *Moderate* - **Moderate hearing loss** is defined by a threshold between **41 dB and 55 dB**. - This level of loss causes difficulty understanding normal conversation without amplification. *Severe* - **Severe hearing loss** is characterized by a threshold between **71 dB and 90 dB**. - Individuals with severe hearing loss often require powerful hearing aids or other assistive listening devices.
Question 8: Lombard's test is used to diagnose which condition?
- A. Conductive hearing loss
- B. Mixed hearing loss
- C. Non-organic hearing loss (Correct Answer)
- D. Sensorineural hearing loss
Explanation: ***Non-organic hearing loss*** - **Lombard's test** is a psychoacoustic test used to identify **non-organic hearing loss (NOHL)**, also known as **functional** or **pseudohypoacusis**. - It relies on the involuntary **Lombard effect**, where people tend to increase their vocal level in the presence of loud noise; a patient with NOHL pretending to have profound hearing loss will increase their vocal volume when noise is presented to their "deaf" ear. *Conductive hearing loss* - This type of hearing loss involves problems with the **outer or middle ear**, preventing sound from being conducted efficiently to the inner ear. - Diagnosis typically involves **audiometry showing an air-bone gap** and physical examination of the ear. *Mixed hearing loss* - This condition is characterized by a combination of both **conductive and sensorineural components**. - It would be diagnosed by **audiometry showing both air-bone gap and elevated bone conduction thresholds**. *Sensorineural hearing loss* - This results from damage to the **inner ear (cochlea)** or the **auditory nerve**, affecting the perception of sound. - Diagnosis involves **audiometry showing elevated bone conduction thresholds** with no significant air-bone gap.
Question 9: In infants, what is the most sensitive audiometric screening method?
- A. Electrocochleography
- B. BERA (Correct Answer)
- C. Tympanometry
- D. Cochlear evoked response
Explanation: ***BERA*** - **Brainstem Evoked Response Audiometry (BERA)** is widely considered the most sensitive audiometric screening method for infants because it directly measures the electrical activity of the auditory pathway from the cochlea to the brainstem. - It can identify hearing loss even in unresponsive infants or those who cannot cooperate with behavioral audiometry. *Electrocochleography* - **Electrocochleography (ECoG)** measures electrical potentials generated by the cochlea and auditory nerve. - While very specific for Ménière's disease and assessing cochlear function, it is generally less commonly used as a primary screening tool for general hearing loss in infants compared to BERA due to its more invasive nature (requiring an electrode near the tympanic membrane). *Cochlear evoked response* - This term is somewhat general and can refer to several tests, including **otoacoustic emissions (OAEs)** or the initial parts of BERA. - While OAEs are a good screening tool to assess outer hair cell function, they are not as comprehensive as BERA in evaluating the entire auditory pathway and can miss neural hearing loss. *Tympanometry* - **Tympanometry** assesses the function of the middle ear, including the eardrum and ossicles. - It is crucial for detecting middle ear pathologies like **otitis media with effusion**, but it does not directly measure auditory nerve or brainstem responses to sound and is not a measure of hearing threshold.
Question 10: According to WHO classification, severe degree of hearing impairment occurs at -
- A. 41-55 dB
- B. 56-70 dB
- C. 26-40 dB
- D. 71-90 dB (Correct Answer)
Explanation: ***71-90 dB*** - According to the **WHO classification** of hearing impairment, a hearing loss in the range of **71-90 dB** is categorized as **severe hearing impairment**. - Individuals with severe hearing impairment typically require **hearing aids** or other assistive listening devices, and may struggle to follow conversational speech even with amplification. *41-55 dB* - This range corresponds to **moderate hearing loss** according to the WHO classification. - Individuals may have difficulty understanding normal speech, especially in noisy environments, but can often communicate with amplification. *56-70 dB* - This range is classified as **moderately severe hearing loss** by the WHO. - Speech understanding is significantly impaired, and individuals typically rely heavily on amplification. *26-40 dB* - This range is considered **mild hearing loss** by the WHO. - Individuals may have difficulty hearing faint speech or speech in background noise, but usually manage well in quiet settings.
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