General Information

The Certificate in Audiometry Assistant is a six-month paramedical program offered by Mahatma Gandhi Ayurvigyan Vidyapeeth. This course provides foundational instruction in the anatomy of the human ear, basic hearing evaluation techniques, and common auditory disorders. Students undergo training in the operation and routine maintenance of audiometric equipment, alongside guided clinical exposure to assist senior audiologists in professional diagnostic healthcare settings.

1. Course Duration: 6 Months
2. Minimum Qualification: 10+2 examination from recognized board
3. Course Category: PARAMEDICAL
4. Total Marks: 600 (Theory 600, 6 subjects)

Course Objectives

• Impart fundamental knowledge regarding the structural anatomy and physiological functioning of the human ear.
• Introduce students to standard hearing assessment methodologies and clinical audiometric procedures.
• Train learners in the safe handling, calibration, and routine maintenance of standard audiometry equipment.
• Develop clinical competencies required to support qualified audiologists during routine diagnostic hearing evaluations.

Learning Outcomes

• Explain basic ear anatomy and identify standard signs of common hearing disorders.
• Prepare patients appropriately for various routine audiometric tests and examinations.
• Operate standard audiometers and acoustic diagnostic instruments under professional supervision.
• Record and document basic pure-tone audiometry test findings accurately.
• Maintain clinical hygiene and perform routine care of auditory screening equipment.

Pass & Division Criteria

The maximum marks and minimum pass marks of Theory and Practical of each subject are given in the Mark Distribution table below. To pass, a candidate must score the minimum pass marks separately in both Theory and Practical of every subject.

The division is decided on the aggregate percentage of marks obtained, as follows —

Mark Distribution

Total marks of the course : 600

Detailed Syllabus

1. Overview of Audiology — Introduction to audiology discipline, historical background, scope of practice, and the primary roles and responsibilities of an audiometry assistant in healthcare settings.
2. Fundamentals of Sound and Acoustics — Basic concepts of sound waves, frequency, intensity, amplitude, pitch, loudness, and essential acoustic properties relevant to human hearing evaluation and testing.
3. Decibel Scale and Measurement — Definition of decibels, sound pressure level, hearing level, sensation level, and the mathematical principles of acoustic measurement in clinical audiology.
4. Concept of Normal Hearing — Characteristics of standard human hearing thresholds, conversational speech spectrum, dynamic range, and minimal audible pressure across various frequency bands.
5. Classification of Hearing Loss — Types of hearing impairment including conductive, sensorineural, and mixed hearing loss, their common etiologies, characteristics, and clinical classifications.
6. Degrees of Hearing Loss — Severity classifications ranging from mild, moderate, moderately-severe, to profound hearing loss based on standard WHO guidelines and audiometric criteria.
7. Communication and Patient Counseling — Techniques for effective communication with hearing-impaired patients, taking basic case histories, and maintaining professional ethics and patient empathy.
8. Role of Audiometry in Healthcare — Integration of audiological services within ENT clinics, community health programs, school screening drives, and occupational health monitoring setups.

1. Overview of the Auditory System — General structural organization of the human auditory apparatus, anatomical orientation, embryological development overview, and basic divisions of the ear.
2. Anatomy of the External Ear — Detailed structure of pinna, external auditory canal, cartilage framework, ceruminous glands, and the blood and nerve supply of outer ear.
3. Structure of the Tympanic Membrane — Layers, anatomical landmarks like pars tensa, pars flaccida, cone of light, and physiological role in transmitting acoustic sound energy.
4. Middle Ear Cavity and Boundaries — Six anatomical walls of the tympanic cavity, epitympanum, mesotympanum, hypotympanum, and their surrounding vascular and neural relationships.
5. Auditory Ossicles and Middle Ear Muscles — Structure and articulation of malleus, incus, stapes, tensor tympani, and stapedius muscles, including their protective acoustic reflex mechanism.
6. Eustachian Tube Anatomy — Functional anatomy, cartilage and bony segments, tensor veli palatini relationship, and role in maintaining middle ear ventilation and equilibrium.
7. Inner Ear and Cochlea — Bony and membranous labyrinth, structure of cochlear turns, scala vestibuli, scala media, scala tympani, and basilar membrane anatomy.
8. Organ of Corti and Hair Cells — Microscopic organization of inner and outer hair cells, tectorial membrane, stereocilia, supporting structures, and mechanical-to-neural sound transduction process.
9. Vestibular System Overview — Structural overview of semicircular canals, utricle, saccule, maculae, cristae, and their basic anatomical role in balance and posture maintenance.
10. Auditory Neural Pathways — Course of the cochlear nerve, cochlear nucleus, superior olivary complex, lateral lemniscus, inferior colliculus, medial geniculate body, and auditory cortex.

1. Tuning Fork Tests — Principles, procedures, and clinical interpretation of standard tuning fork tests, specifically Weber, Rinne, Schwabach, and Bing tests for hearing loss.
2. Pure Tone Audiometry Principles — Theoretical framework of pure tone testing, air conduction versus bone conduction pathways, standard frequencies, and hearing threshold determination.
3. Air Conduction Audiometric Testing — Systematic steps for obtaining air conduction thresholds across standard test frequencies, patient seating, transducer placement, and response signaling methods.
4. Bone Conduction Audiometric Testing — Placement of bone vibrator, mastoid versus forehead placement, occlusion effect, testing protocol, and determining sensorineural reserve in patients.
5. Clinical Masking Techniques — Rules for masking, plateau method, interaural attenuation values, shadow curves, and selecting appropriate noise for air and bone testing.
6. Audiogram Plotting and Interpretation — Standard audiological symbols, conventions for right and left ears, plotting thresholds, and identifying air-bone gaps indicating conductive pathologies.
7. Speech Audiometry Basics — Concepts of speech reception threshold, speech recognition threshold, word recognition score, and administering standardized recorded or live voice word lists.
8. Tympanometry and Acoustic Reflexes — Basic principles of immittance testing, compliance measurement, ear canal volume, tympanogram types, and stapedial reflex screening procedures.
9. Pediatric Hearing Screening Methods — Behavioral observation audiometry, visual reinforcement audiometry concepts, condition play audiometry, and newborn hearing screening protocols using OAE techniques.

1. Classification of Diagnostic Audiometers — Understanding manual, digital, and computerized audiometers, their system specifications, operational controls, interface buttons, and clinical utility in testing.
2. Transducers and Headphone Maintenance — Types of transducers including TDH-39 supra-aural headphones, insert earphones, bone conductors, proper cleaning, and safe storage practices.
3. Sound-Treated Rooms and Ambient Noise — Specifications of soundproof booths, permissible ambient noise levels according to standards, ventilation upkeep, and environmental acoustic noise monitoring.
4. Equipment Calibration and Biological Checks — Daily biological listening checks, periodic acoustic calibration protocols, detecting frequency drift, intensity discrepancies, and documentation of calibration records.
5. Immittance Equipment and Probe Handling — Handling impedance audiometer units, selecting appropriate probe tips, cleaning probe tubes, airtight sealing techniques, and routine system pressure checks.
6. Otoscopic Examination Tools — Operation and safe handling of diagnostic otoscopes, speculum selection, sterilization procedures, bulb replacement, and basic ear canal visualization safety.
7. Electrical Safety and Troubleshooting — Electrical safety guidelines in clinic setups, earthing checks, identifying cord damages, troubleshooting common artifact errors, and intermittent audio issues.
8. Infection Control and Sanitation — Sterilization protocols for reusable ear tips, patient contact parts, sanitizing headphones, disposal of single-use accessories, and personal hygiene measures.

1. Introduction to Hearing Loss Types — Learn about conductive, sensorineural, and mixed hearing loss along with their basic characteristics, differentiating factors, and common clinical presentations in patients.
2. Congenital and Genetic Hearing Impairments — Study genetic causes of deafness, prenatal infections, maternal factors, syndromes associated with hearing loss, and identification of congenital auditory abnormalities in infants.
3. External Ear Pathologies — Understand impacted cerumen, otitis externa, foreign bodies, atresia, microtia, and their impact on acoustic transmission and patient comfort during screening.
4. Middle Ear Diseases and Disorders — Explore otitis media with effusion, acute otitis media, tympanic membrane perforation, cholesteatoma, and ossicular chain disruption affecting hearing sensitivity.
5. Otosclerosis and Stapedial Fixation — Study the pathology of otosclerosis, etiology, clinical features, Carhart's notch on audiograms, and basic surgical and conservative management options.
6. Noise-Induced Hearing Loss and Presbyacusis — Examine acoustic trauma, occupational noise hazards, age-related sensorineural hearing loss, typical audiometric notch patterns, and preventive hearing conservation measures.
7. Ototoxicity and Systemic Conditions — Learn about drug-induced hearing loss caused by aminoglycosides, chemotherapy agents, and systemic diseases like diabetes affecting the inner ear structures.
8. Vestibular and Balance Disorders — Cover Meniere's disease, labyrinthitis, vestibular neuritis, benign paroxysmal positional vertigo, and their common relationship with associated auditory symptoms.
9. Tinnitus and Hyperacusis — Understand subjective and objective tinnitus, underlying etiologies, clinical manifestation, psychological impacts on patients, and basic habituation or management approaches.
10. Auditory Neuropathy Spectrum Disorder — Explore neural dyssynchrony, auditory nerve lesions, speech perception discrepancies, diagnostic indicators, and differentiation from typical cochlear hearing impairments.

1. Hospital Etiquette and Patient Interaction — Learn basic clinical protocols, professional bedside manners, patient communication strategies, empathy, and ethical conduct within ENT and audiology healthcare setups.
2. Patient Preparation and History Taking — Master documenting demographic details, chief complaints, medical history, family history of hearing impairment, and preparing patients for clinical audiometric evaluations.
3. Infection Control and Equipment Sanitization — Study sterilization of otoscope specula, probe tips, headphone sanitation, safe clinical hygiene protocols, and biological waste disposal in audiometric cabins.
4. Assisting in Otoscopic Examinations — Observe external auditory canal evaluation, identification of landmarks of the tympanic membrane, and assisting audiologists during routine pre-test ear inspections.
5. Setup and Calibration of Audiometers — Understand warm-up procedures, headphone placement, bone vibrator positioning, sound booth acoustic monitoring, and performing daily biological calibration checks safely.
6. Assisting Pure Tone Audiometry — Learn patient instruction methods, responding to conditioning difficulties, record keeping, and assisting audiologists in air and bone conduction testing.
7. Assisting Impedance Audiometry and OAE — Observe patient positioning, probe insertion, immittance screening procedures, otoacoustic emission recording, and documenting test outputs for clinical review.
8. Handling Pediatric and Geriatric Patients — Study techniques for handling uncooperative children, conditioning playful audiometry, addressing elderly cognitive delays, and ensuring patient safety during examinations.
9. Hearing Aid Maintenance and Demonstration — Learn basic hearing aid troubleshooting, battery replacement, earmold cleaning, demonstration of care instructions, and assisting users with device handling.
10. Clinical Documentation and Record Management — Practice maintaining audiometric registers, computer data entry, archiving test graphs, issuing patient appointments, and managing referral files correctly.