TVF full form in medical is Tactile Vocal Frenitus. The term is used to describe the vibration felt on the chest wall during speech. This physical test technique includes assessing the function of the airways and lungs by the healthcare provider.
TVF testing involves the examiner touching the patient’s chest wall while asking them to talk or hum. Then, the healthcare provider determines how strong the vibrations are experienced when talking or humming. The sound waves generated by the vocal cords then pass down the trachea and bronchi to the lungs, where they cause vibrations.
It is a good sign that the sound waves are making it from the mouth and nose via the airways and into the lungs if they are powerful and noticeable. The lungs and airways appear to be healthy. There may be an issue with lung function or airflow if the vibrations are minimal or nonexistent.
TVF method is an effective tool for measuring respiratory conditions, including chronic obstructive pulmonary disease, pleural effusion, pneumonia, etc. In addition, it helps measure the effectiveness of treatments, including airway cleaning methods.