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TDT Test (Tone Decay Test)
Measures how long you hear a steady tone to detect problems with the hearing nerve and signal transmission.
What is a TDT Test (Tone Decay Test) Test?
The Tone Decay Test (TDT) measures how long a person can hear a steady pure tone presented at a comfortable loudness. It checks whether the ear and auditory nerve keep responding over time. This is important because a rapid decrease in hearing of the tone can suggest nerve or retrocochlear problems rather than just inner ear (cochlear) loss. Doctors use TDT alongside hearing tests and speech tests. It helps decide whether further investigations, like imaging or specialist referral, are needed to look for tumors, nerve disorders, or certain neurological diseases. The test is quick and done in a sound-treated room by an audiologist.
TDT Test (Tone Decay Test) Test Preparation
No special preparation is required.
TDT Test (Tone Decay Test) Test Parameters
The TDT Test (Tone Decay Test) test evaluates various parameters related to the different components. Here are the main parameters that are checked in the test:
Why Take a TDT Test (Tone Decay Test) Test?
TDT TEST (TONE DECAY TEST) is usually part of an audiology battery used when patients have unexplained or one-sided hearing loss, persistent ringing (tinnitus), or uneven speech understanding. Doctors order it to help distinguish cochlear (inner ear) problems from retrocochlear or nerve-related conditions. Abnormal results can come from nerve tumors, demyelinating disease, severe cochlear damage, or ototoxic medications. A family history of nerve tumors or neurological disease can make this test especially important.
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Vijay Bisht was friendly, helpful, and made our home test process seamless. Grateful for his timely support and follow-up.
A big thank you to Shikhar from the Visit app for going above and beyond to arrange a last-minute appointment during an urgent situation. His seamless coordination truly made a difference.
A clean facility enhances experience. Quick checkups are a plus. Miss Rinku from Aditya Birla Health Insurance provided excellent service and handled our files well.
“The service was excellent—she was helpful, efficient, and made my recovery smooth and stress-free. Her support made a real difference.”
“Thank you, Shared Gupta, for the great support with my reimbursement claims and Wipro health packages. Truly appreciated!”
Thank you, Rinku. I appreciate your help during my visit. The hospital staff were courteous and professional. Overall, a very good experience!
Vijay Bisht was friendly, helpful, and made our home test process seamless. Grateful for his timely support and follow-up.
A big thank you to Shikhar from the Visit app for going above and beyond to arrange a last-minute appointment during an urgent situation. His seamless coordination truly made a difference.
A clean facility enhances experience. Quick checkups are a plus. Miss Rinku from Aditya Birla Health Insurance provided excellent service and handled our files well.
“The service was excellent—she was helpful, efficient, and made my recovery smooth and stress-free. Her support made a real difference.”
“Thank you, Shared Gupta, for the great support with my reimbursement claims and Wipro health packages. Truly appreciated!”
Thank you, Rinku. I appreciate your help during my visit. The hospital staff were courteous and professional. Overall, a very good experience!
I want to share my feedback on the help I received for my health checkup. I was happy with the guidance and support. Thank you for your assistance; it made the experience stress-free.
Huge shoutout to Shikhar from the Visit app! He has been incredibly supportive during emergencies — always responsive and ready to help. Truly impressed by his dedication and calm efficiency.
“I connected with the concierge team today and spoke with Vijay—he was helpful and made a real effort to address my concerns.”
I appreciate Shreshta's outstanding support. She kept me updated on my medicals after hours and ensured everything went smoothly. Her proactive communication and care made a big difference.
“Grateful to Shikhar for finding a cataract specialist at a convenient time and ensuring a smooth experience. A true asset to the Visit team!”
Hi Aniket, Annu, Mayur, I appreciate Shikhar's support in organizing clinic appointments for my child at odd hours. It's a sensitive matter for any parent, and I'm thankful for his understanding.
I want to share my feedback on the help I received for my health checkup. I was happy with the guidance and support. Thank you for your assistance; it made the experience stress-free.
Huge shoutout to Shikhar from the Visit app! He has been incredibly supportive during emergencies — always responsive and ready to help. Truly impressed by his dedication and calm efficiency.
“I connected with the concierge team today and spoke with Vijay—he was helpful and made a real effort to address my concerns.”
I appreciate Shreshta's outstanding support. She kept me updated on my medicals after hours and ensured everything went smoothly. Her proactive communication and care made a big difference.
“Grateful to Shikhar for finding a cataract specialist at a convenient time and ensuring a smooth experience. A true asset to the Visit team!”
Hi Aniket, Annu, Mayur, I appreciate Shikhar's support in organizing clinic appointments for my child at odd hours. It's a sensitive matter for any parent, and I'm thankful for his understanding.