Final answer:
When a chest tube is inserted, it can cause certain changes in lung sounds, including decreased breath sounds and crackling or bubbling sounds. These sounds are a result of the chest tube draining air or fluid from the space around the lungs.
Step-by-step explanation:
When a chest tube is inserted, it is used to drain air, blood, or fluid from the space around the lungs. The presence of a chest tube can cause certain lung sounds to be heard. These lung sounds vary depending on the reason for the chest tube insertion, but commonly include decreased or absent breath sounds over the affected area. This is because the chest tube is draining the air or fluid that would normally produce sounds when the lungs expand and contract. Additionally, crackling sounds or bubbling may be heard if there is air or fluid present in the thoracic cavity.