Crackles heard in the lungs of a person with pneumonia using a stethoscope. Crackles, crepitations, or rales (/ËrÉËlz/ RAHLZ or /ËrÃ¦lz/ RALZ) are the clicking, rattling, or crackling noises that may be made by one or both lungs of a human with a respiratory disease during inhalation. They are often heard only with a stethoscope (on auscultation).
The symptoms of chest congestion can be listed as under. 1  Coughing. 2  Shortness of breath. 3  Labored breathing. 4  Chest pain. 5  Dizziness. 6  Runny nose. 7  Wheezing. 8  Discomfort. 9  Blood in cough. 10  Loud noises while breathing.
Symptoms of lung cancer may include: 1  Coughing symptoms, such as: 2  A new cough or a cough that doesn't go away. 3  In smokers who have a chronic cough, a change in how severe their cough is or how much they cough.4  Coughing up blood or bloody mucus. 5  Chest symptoms, such as: 6  Chest, shoulder, or back pain that doesn't go away and often gets worse with ...ymptoms of lung cancer may include: 1  Coughing symptoms, such as: 2  A new cough or a cough that doesn't go away. 3  In smokers who have a chronic cough, a change in how severe their cough is or how much they cough.