NVBS Full Form in Medical term is Normal Vesicular Breath Sound. The lungs produce a sound called a vesicular sound, which is a gentle blowing or rustling sound that may be heard in many of lung fields.
Typically, vesicular noises are heard during inspiration, carry over into the beginning of expiration without interruption, and gradually fade away by the time the expiratory phase is two-thirds complete.
Doctors can hear vesicular breath sounds, which are faint, low-pitched sounds, throughout the lungs, especially during inspiration. Although these noises are typically harmless, they can become abnormal if a person is experiencing an illness or has a persistent condition. Sounds like crackling, wheezing, and clicking are examples of aberrant noises
How it is detected?
Using only a stethoscope in a calm room, one can listen to vesicular breath sounds. Asthma, chronic obstructive pulmonary disease, and chest infections are only few of the medical conditions that can alter the internal sounds of breathing.
Most of the lung fields in an air-filled lung will have vesicular sounds, the first and second anterior interspaces will have bronchovesicular sounds, the body of the sternum will have bronchial sounds, and the trachea will have tracheal sounds.