Are any breath sounds considered normal?

In the context of diving first aid, it is essential to understand that not all breath sounds are considered normal. Normal breath sounds typically refer to the sounds produced by air moving in and out of healthy lungs, which should be clear and unlabored. Abnormal breath sounds, which may include wheezing, crackling, or decreased breath sounds, can indicate underlying health issues such as respiratory distress, fluid in the lungs, or airway obstruction.

In the case of divers, the presence of abnormal breath sounds could signify serious conditions related to diving, such as decompression sickness or pulmonary barotrauma. Therefore, any audible breath sounds during a primary assessment should prompt immediate medical evaluation. Recognizing that abnormal sounds do exist and are a sign of potential complications is critical for ensuring a diver's safety and responding appropriately in a first aid situation.