Q. Does the GSI Corti automatically start testing when the probe seal is obtained?
A. Yes, after the probe is placed in the ear canal and the “Test” button is pressed, the unit automatically runs through a series of self-checks to ensure that a seal is obtained and the noise floor is low, and conducts an in-the-ear signal calibration test. This process happens very quickly and often takes less than a second. The test will then begin automatically.
Q. What does a “Pass” or “Refer” indicate on the Corti?
A. The presence of otoacoustic emissions suggests normal outer hair cell function. However, a Pass result is not an indication that the full auditory system is normal. A full audiologic evaluation should be administered if concerns about hearing sensitivity persist. A Refer result indicates the outer hair cell function is not normal. A Refer result should not be assumed to be an indicator of a lack of auditory function or the presence of pathology. Refer results should be repeated. If the Refer result persists, full audiologic diagnostic testing and/or medical evaluation should be conducted.
Q. Can the Corti be used in an environment with background noise?
A. It is ideal to use the Corti in a quiet environment. For noisier environments, the Corti’s unique patented Adaptive Artifact Rejection Algorithm optimizes responses in variable noise. Every sample is categorized and sorted as the data is collected. This method allows data to be collected successfully in higher noise environments, reducing false referrals.
Q. Can the screening protocols of the Corti be modified?
A. No, the Corti screener includes two screening protocols offering different averaging times. The remaining screening protocol criteria are fixed.
Q. What is the battery life of the Corti?
A. The battery life is 20 hours of continuous power “on” time. The charge time for a fully depleted battery is four hours. For convenience, the optional cradle will charge the unit battery whenever the unit is placed in it.