Mixed Deck — All ABA Topics Flashcards

What is the importance of continuing education for ABA professionals in Advanced Diagnostics & Troubleshooting?

Answer: Maintaining current knowledge and adapting to industry changes

Continuing education keeps professionals current with developments and best practices while meeting certification requirements.

The EPA Noise Control Act of 1972 granted EPA authority to regulate noise from all of the following EXCEPT:

Answer: Individual workers in private industry facilities

The Noise Control Act covers transportation noise sources (aircraft, rail, motor carriers) but occupational noise exposure of individual workers is regulated by OSHA, not the EPA.

During acoustic reflex testing, contralateral reflexes are absent while ipsilateral reflexes are present bilaterally. This pattern is most consistent with a lesion in the:

Answer: Brainstem (crossing fibers)

Absent contralateral reflexes with present ipsilateral reflexes indicates disruption of the crossing brainstem pathway used in the contralateral reflex arc.

Which test battery is most appropriate for confirming hearing loss and estimating degree in a 2-month-old infant?

Answer: Frequency-specific ABR and OAEs with tympanometry

Frequency-specific ABR provides threshold estimation by frequency, OAEs assess outer hair cell function, and tympanometry evaluates middle ear status in infants.

Electrode impedance checks in CI programming primarily assess:

Answer: The integrity of the electrical circuit between the electrode and the tissue interface

Impedance measurements evaluate the integrity of the electrode–tissue interface; abnormally high impedances may indicate an open circuit, and very low impedances can indicate a short circuit.

Why is confidentiality critical in audiologic practice?

Answer: It builds patient trust and privacy

Confidentiality is paramount in healthcare, ensuring that sensitive patient information is protected and not disclosed without permission. Maintaining confidentiality fosters a safe environment where patients feel comfortable sharing personal details, which is crucial for accurate diagnosis and effective treatment. This practice upholds patient privacy rights and strengthens the therapeutic relationship.

Why is family counseling important in pediatric audiology?

Answer: To help families support the child

Family counseling is an essential component of pediatric audiology because hearing loss in a child affects the entire family unit. Counseling provides parents and caregivers with vital information, emotional support, and strategies to understand their child's hearing loss and communication needs. It empowers families to actively participate in the child's rehabilitation, fostering a supportive environment for their development and well-being.

Which circuit element in a hearing aid output stage limits maximum acoustic output to protect residual hearing?

Answer: An automatic gain control (AGC) or output limiting circuit

AGC circuits and output limiters are specifically designed to prevent the hearing aid from exceeding prescribed maximum output levels (OSPL90).

A patient receiving ototoxic chemotherapy should be monitored using which audiometric test frequencies beyond the standard clinical range to detect early cochlear damage?

Answer: Extended high frequencies above 8000 Hz

Ototoxic damage typically begins in the basal cochlea at frequencies above 8000 Hz; extended high-frequency audiometry detects damage before it reaches the speech range.

Which finding would indicate a peripheral (vs. central) vestibular lesion based on spontaneous nystagmus characteristics?

Answer: Horizontal nystagmus that is inhibited by visual fixation

Peripheral vestibular nystagmus is horizontal-torsional and is inhibited by visual fixation, unlike central nystagmus which is not suppressed by fixation.

A sound level meter set to 'slow' response and A-weighting measures the time-averaged noise exposure for compliance with:

Answer: OSHA TWA using a dosimeter-equivalent method

A-weighted slow-response measurements are used to assess occupational noise exposure in relation to OSHA's TWA limits and PEL for continuous noise.

In clinical practice, DPOAEs are most commonly measured at a primary tone frequency ratio (f2/f1) of approximately:

Answer: 1.22

A ratio of f2/f1 ≈ 1.22 produces the largest and most reliable DPOAE responses because it optimizes the nonlinear interaction between the two primary tones.

What does the principle of non-maleficence mean?

Answer: Do no harm to patients

Non-maleficence is a core ethical principle in healthcare, meaning "do no harm." It obligates audiologists to avoid actions that could intentionally or unintentionally cause harm to their patients. This principle guides decisions regarding treatment choices, diagnostic procedures, and overall patient management, ensuring patient safety and well-being are always prioritized.

A patient's tympanogram shows an abnormally low static admittance (As) with a normal tympanometric peak pressure. Which condition is most consistent?

Answer: Otosclerosis

Otosclerosis typically produces a low or absent peak (Type As tympanogram) due to stiffening of the ossicular chain, particularly the stapes footplate.

A patient requests their complete audiological records. Under HIPAA, within how many days must the covered entity respond to this request?

Answer: 60 days

HIPAA requires covered entities to act on patient record requests within 60 days, with one possible 30-day extension.

Which of the following best describes the concept of 'nonmaleficence' as it applies to audiology practice?

Answer: Avoiding harm to patients through negligent or intentional actions

Nonmaleficence means 'do no harm' — audiologists must avoid actions that cause unnecessary harm to patients.

When measuring hearing with insert earphones versus supra-aural earphones, which transmission-related advantage do insert earphones provide?

Answer: Increased interaural attenuation (~50–75 dB) and elimination of ear canal collapse

Insert earphones placed in the ear canal increase interaural attenuation (reducing cross-hearing) and prevent collapsible ear canals from artificially elevating thresholds.

During bone-conduction ABR testing, the audiologist must use masking noise in the contralateral ear to prevent:

Answer: Transcranial transmission producing a response from the non-test ear

Bone-conducted sound transmits readily across the skull, potentially stimulating the non-test cochlea and producing a false response; contralateral masking ensures the response is from the intended ear.

Which of the following is a HIPAA-relevant concern when updating hearing aid fitting software that stores patient records?

Answer: Ensuring patient data is encrypted and access controls remain intact post-update

HIPAA requires that protected health information remain encrypted and access-controlled; software updates must be validated to ensure these security controls are not disrupted.

The Carhart notch, a characteristic audiometric dip around 2000 Hz on bone conduction, is associated with which drivetrain pathology?

Answer: Otosclerosis

The Carhart notch is a mechanical artifact of otosclerosis where stapes fixation reduces the resonant contribution of the ossicular chain to bone conduction testing.