AudiologyOtolaryngology

Audiometric Test

Normal Range
0-25 dB HL (Normal Hearing)
Sample Type
Physical Measurement (Sound)
Fasting
No
Unit
dB HL

Function

An Audiometric Test is a non-invasive diagnostic procedure used to evaluate an individual's hearing sensitivity across a range of frequencies. It determines the quietest sounds (thresholds) a person can hear at specific pitches, ranging from low to high frequencies. This test measures both air conduction (how sound moves through the ear canal) and bone conduction (how sound vibrates through the skull to the inner ear).

Why it is Ordered

This test is ordered to screen for hearing loss in adults, monitor the effects of noise exposure in occupational settings, or investigate symptoms like tinnitus (ringing in the ears), dizziness, or a sensation of fullness in the ear. It is also used to differentiate between conductive hearing loss (middle ear issues) and sensorineural hearing loss (inner ear or nerve damage).

Associated Conditions

  • Presbycusis: Age-related hearing loss.
  • Noise-Induced Hearing Loss: Damage from chronic or sudden loud noise.
  • Otosclerosis: Abnormal bone growth in the middle ear.
  • Meniere's Disease: An inner ear disorder affecting balance and hearing.
  • Ototoxicity: Hearing damage caused by certain medications (e.g., high-dose aspirin or some antibiotics).

Check Your Result

Check Your Result

Interactive
dB HL

Enter your lab result to see where you stand compared to the standard reference range.

Why Context Matters

External factors such as background noise in the testing environment, a recent upper respiratory infection causing temporary fluid in the ear, or heavy earwax (cerumen) buildup can significantly skew results. Additionally, patient fatigue or lack of focus during the tone-response process can lead to inaccurate thresholds, necessitating a re-test in a more controlled environment.

Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.

Clinical References

Source-of-truth databases and clinical guidelines for Audiometric Test:

Research & Guidelines

Related Indicators

DR

Medically Reviewed by Dr. Binoy Babu, MBBS

Board Certified Doctor • 10+ Years Clinical Experience

Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.

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