Obtain Information on a Patient’s Middle Ear Status With Immittance

In short, immittance testing is any test which involves placing a probe in the ear to obtain information on a patient’s middle ear status. Not only do immittance tests provide value information on their own, they can also be used to corroborate the results of other assessments.

Learn more about Immittance
Auditdata 160823 383 (1)

What Tests Does Immittance Testing Include?

Acoustic Reflex Thresholds (ART)

The acoustic reflex is an involuntary contraction of the stapedial muscle in response to loud sounds. When the stapedial muscle contracts, it stiffens the ossicles and tympanic membrane decreasing admittance, or the absorption of sound. This stiffening can be measured in the same way as during tympanometry. During ART testing, loud sounds (70 – 115 dB), typically presented at 500, 1000, 2000, and at times 4000 Hz are introduced into the ear alongside a constant probe tone. These loud sounds induce the acoustic reflex while the probe tone detects the contraction.

Acoustic Reflex Decay (ARD)

Acoustic reflex decay testing is performed nearly identically to acoustic reflex threshold testing but evaluates the maintenance of the reflex contraction over time. ARD testing is useful in differentiating between cochlear and retrocochlear losses, as the reflex will often weaken during continuous stimulation in retrocochlear pathologies. During ARD testing, a tone is presented typically at 500 and 1000 Hz above the patient’s threshold at that frequency. The tone is presented for 10 seconds as the reflex contraction is measured.

Entomed TY-101

Portable Diagnostic Tympanometer

Tympanometer Entomed TY 101 Auditdata Measure
Click to enlarge

Experience the power of our comprehensive solutions designed to accurately evaluate patients' hearing capabilities by seamlessly administering a wide range of audiological tests.

Go to Tympanometer

Why is Immittance Testing Valuable?

Transform Your Audiology Practice Today!

Experience the perfect synergy of cutting-edge hardware and software solutions. Elevate patient care, streamline workflows, and achieve outstanding results. Discover how our innovative solutions can revolutionize your audiology practice and generate leads for your business. Take the first step towards unlocking your practice's full potential by contacting us now.