Sputum: Understanding Its Role in Respiratory Disease Diagnosis

The substance ejected through mouth and used for diagnostic purposes in respiratory disorders is called sputum. Sputum is a mixture of saliva and mucus that is produced in the lungs and airways. It can contain cells, bacteria, viruses, and other particles. Sputum analysis can be used to diagnose a variety of respiratory conditions, including pneumonia, bronchitis, and tuberculosis.