Praxis Audiology (5343)
Praxis Audiology (5343) is a trademark of its owner, which is not affiliated with and does not endorse Test Treasure Publication or TTP Prep.
Praxis Audiology (5343) is a trademark of its owner, which is not affiliated with and does not endorse Test Treasure Publication or TTP Prep.
10 sample questions for the Praxis Audiology (5343), with the correct answer and an explanation for each. No account needed. Try each one before you open the answer.
Sections covered on the exam: Sources, Level, Sensation Level, Performance, Interpretation, Localization Cues, Sequence, Calibration Hardware, Selection, Acoustics and Instrumentation, Anatomy, Physiology, Development, and Pathophysiology, Childhood Loss, Pathway Lesion, Cochlear Damage, Susceptibility, Action, Embryology, Mechanism, Loss Subtype, Infection Pattern, Prevention and Screening, Derating, Rules, Change, Result, Rescreen, Accuracy, Screening, Behavioral Assessment, Technique, Responses, Score, Pattern, Phenomenon, Need, Gaps, Middle-Ear Profile, Decay Finding, Frequency Arithmetic, Findings, The Early Waveform, After Diagnosis, Comparison, Stimulus Choice, Calculation, Test Response, Posturography Pattern, Tympanogram Volume, Impulse Results, Impression Wording, Fixation Finding, Intervention, Headphone Cushions, Without Expected Benefit, Request For Results, Intervention Document, Professional and Ethical Practice, Counter Eligibility, Assistant Duties, Research Evidence, Statistical Test, Coverage, Background Noise, For Attenuation, 2X2 Table, Prevalence, Outcome, Audibility, Fusion, From Masking, Weightings, Resonance, Vision Change, Related Referral, Loss In A Teen, Anomaly, Risk Counseling, Site of Lesion, Vestibular Asymmetry, Vertigo Mechanism, Conduction Dip Meaning, Vertigo Pathology, Rel, Follow-Up, Timing, Function, Discrepancy, Conclusion, Referral Age, Testing, Hypermobile Middle Ear, With Mild Loss, Localization, Checking A Severe Loss, Infant Probe Tone, Multifrequency Tympanometry, Loss Workup, After Abr, Asymmetry Measures, Nerve Branch, Thresholds, Responses Both Ears, Canal Tests, Oculomotor Red Flag, Cognitive Potential, And Aeps, Change Referral, Sequence Error, Privacy Law, Claim Coding, Misrepresenting Credentials, Instructor Eligibility, Nonsignificant Result, Vestibular Testing, Communication Access, After Gloving.
Question 1 · Sources
During a walk-through of a hospital mechanical room, an audiologist measures each piece of equipment separately at the same listening position: Pump 1 produces 80 dB SPL, Pump 2 produces 80 dB SPL, and a ventilation fan produces 70 dB SPL. All three sources are uncorrelated. What overall level is expected at that position when all three sources run at the same time?
Answer: A. About 83 dB SPL
Decibels are combined on an intensity basis: 10 log(10^8.0 + 10^8.0 + 10^7.0) = 10 log(2.1 x 10^8) = 83.2 dB SPL, so the two equal pumps add 3 dB and the fan, 10 dB weaker, adds only about 0.2 dB more. The 86 dB answer adds 3 dB for every source regardless of level, which ignores that a source 10 dB weaker contributes only one-tenth of the intensity.
Question 2 · Prevention and Screening
Mr. Okafor, a 44-year-old press operator, wears a noise dosimeter for a full 8-hour shift. For hearing conservation purposes, all sound levels of 80 dBA and above are integrated using the OSHA criterion level (90 dBA) and 5-dB exchange rate. DOSIMETRY SUMMARY Activity Level (dBA) Duration (h) Press line 95 4 Assembly area 90 2 Break room / office 85 2 Which of the following correctly states Mr. Okafor's daily noise dose and 8-hour TWA?
Answer: D. 137.5% dose; TWA about 92.3 dBA
Reference durations are T = 8/2^((L-90)/5): 4 h at 95, 8 h at 90 and 16 h at 85 dBA, so D = 4/4 + 2/8 + 2/16 = 1.375 (137.5%) and TWA = 16.61 log10(1.375) + 90 = 92.3 dBA. The 125% option omits the 85-dBA period, which must be included when levels from 80 dBA upward are integrated for hearing conservation purposes.
Question 3 · Behavioral Assessment
Rafael, 45, reports that he woke 2 days ago with aural fullness, tinnitus, and reduced hearing in his right ear. Testing shows a 50-60 dB HL right sensorineural loss, a normal left ear, and normal tympanograms bilaterally. What is the most appropriate action?
Answer: D. Refer the same day to otolaryngology for evaluation of sudden sensorineural loss
A unilateral sensorineural loss of sudden onset within the past few days is a medical urgency: corticosteroid treatment is most effective when started early, and the physician directs any imaging. Delaying referral for an ABR or a confirmation retest uses up the treatment window, and amplification is premature before medical evaluation.
Question 4 · Tympanogram Volume
226-HZ TYMPANOMETRY, ADULT, RIGHT EAR Measure Result Tympanogram shape Flat (no peak) Ear canal volume 4.6 mL Left ear canal volume 1.2 mL The patient has no history of ear surgery. Which explanation is MOST likely for the right-ear result?
Answer: D. Tympanic membrane perforation
A flat tympanogram with an ear canal volume far larger than the opposite ear means the probe is measuring the middle-ear space as well, which happens through a perforation (or a patent tube, excluded here by history). Effusion gives a flat tracing with a normal volume, while cerumen or a blocked probe gives a flat tracing with an abnormally small volume.
Question 5 · Intervention
A 4-year-old girl recovered from bacterial meningitis 3 weeks ago and now has bilateral profound sensorineural hearing loss. Imaging shows early signs of labyrinthitis ossificans. Which recommendation is most appropriate?
Answer: D. Expedite cochlear implant evaluation before cochlear ossification progresses
Meningitis can cause the cochlea to fill with fibrous tissue and new bone, which can make full electrode insertion difficult or impossible, so implant evaluation and surgery are expedited. Waiting for a long hearing aid trial or recovery risks losing the chance for full insertion, and a bone-conduction device cannot help when both cochleae have profound sensorineural loss.
Question 6 · Background Noise
To document noise from a new printer in a school office, an educational audiologist measures 75 dB SPL at the receptionist's desk with the printer running. With the printer switched off and everything else unchanged, the meter reads 72 dB SPL. What level is produced by the printer alone at the desk?
Answer: D. About 72 dB SPL Tumor on MRI 46 4 50
Decibels must be subtracted on an intensity basis: 10 log(10^7.5 - 10^7.2) = 10 log(31,622,777 - 15,848,932) = 10 log(15,773,845) = 72.0 dB SPL; the printer and the background are about equal, which is why together they add 3 dB. The 3 dB answer subtracts the decibel values arithmetically, which is not valid for logarithmic quantities.
Question 7 · Rel
At a worker's station, each of two identical machines produces 91 dBA when running alone. With both machines running, how long can the worker be exposed per day before reaching the NIOSH recommended exposure limit?
Answer: B. 1 hour
Two equal incoherent sources add 3 dB, so the combined level is 94 dBA. The NIOSH REL is 85 dBA for 8 hours with a 3-dB exchange rate: T = 8/2^((94 - 85)/3) = 8/2^3 = 1 hour. The 2-hour value applies to one machine only (91 dBA), and about 4.6 hours is the OSHA permissible time at 94 dBA with a 5-dB exchange rate.
Question 8 · Behavioral Assessment
An audiometric Bing test is performed at 500 Hz with the oscillator on the right mastoid. The unoccluded BC threshold is 15 dB HL, and it remains 15 dB HL when the right ear canal is occluded. What does this suggest?
Answer: B. An absent occlusion effect, consistent with a right conductive component
Occluding a normal ear improves low-frequency BC thresholds (a positive Bing); no improvement means the occlusion effect is absent, as happens when a conductive component is already present. A sensorineural ear with a normal middle ear would still show the occlusion effect, and occlusion lowers (improves) rather than raises BC thresholds.
Question 9 · Oculomotor Red Flag
Which VNG finding MOST clearly warrants prompt referral for neurologic evaluation?
Answer: C. Direction-changing gaze-evoked nystagmus
Nystagmus that changes direction with gaze direction is a central sign, often cerebellar or brainstem, and calls for neurologic evaluation. Spontaneous nystagmus suppressed by fixation, a unilateral caloric weakness and fatigable posterior canal BPPV are all typical peripheral findings.
Question 10 · Intervention
A 12-year-old with mild unilateral hearing loss performs at grade level. The evaluation team finds she does not need specially designed instruction, but she needs a remote microphone and preferential seating. Which plan most appropriately provides these accommodations?
Answer: B. A Section 504 plan
A Section 504 plan provides accommodations for students with a disability that limits a major life activity such as hearing, even when they do not qualify for special education. An IEP requires eligibility for specially designed instruction, which the team ruled out, and an IFSP covers children from birth to age 3.
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