What is Mucus Plug Clearance?
Thick mucus can block airways, causing part of the lung to collapse (atelectasis) — particularly in hospitalised patients, after surgery or in conditions like bronchiectasis and ABPA. Therapeutic bronchoscopy allows targeted suctioning and washing to clear these plugs when physiotherapy alone is not enough.
Why it is done
- Lung or lobe collapse due to secretions
- Patients unable to clear secretions effectively
- Allergic bronchopulmonary aspergillosis with mucus impaction
Before the procedure
- Fasting for about 6 hours before the procedure (you will be given exact instructions)
- Inform the team about blood thinners, diabetes medicines and allergies — some medicines may need to be paused
- Blood tests and recent imaging (CT scan) are usually reviewed beforehand
- Bring a family member or friend to accompany you home
During the procedure
- Secretions are suctioned through the bronchoscope
- Saline washes may be used to loosen thick mucus
After the procedure
- You will be observed for a short period until the sedation wears off
- Avoid eating or drinking for about 1–2 hours, until the throat numbness settles
- A mild sore throat, cough or slight blood-streaked sputum may occur briefly
- Do not drive or operate machinery for the rest of the day after sedation
- Biopsy results usually take a few days; your follow-up will be scheduled
Safety & risks
Bronchoscopy is generally a safe procedure. Possible risks include sore throat, transient fever, minor bleeding, low oxygen levels during the procedure and, rarely, pneumothorax (especially after lung biopsy). Your doctor will discuss the risks relevant to you before obtaining consent.
Preparation instructions may differ for individual patients — please follow the specific advice given at your consultation.