Final answer:
During a diagnostic bronchoscopy, two types of methods used to obtain a specimen are brushing and washing.
Step-by-step explanation:
During a diagnostic bronchoscopy, there are several methods used to obtain a specimen:
- Brushing: A brush is inserted through the bronchoscope and used to collect cells from the bronchial wall.
- Washing: Saline solution is introduced through the bronchoscope and then suctioned out, collecting cells and mucus.
These methods allow for the examination of cells and fluids to diagnose or monitor respiratory diseases, infections, or tumors in the lungs.