Lung Flashcards
Widely accepted and published standard protocol for lung ultrasound?
BLUE protocol
What are the scanning windows in the BLUE protocol?
(BILATERAL)
- upper blue point
- lower blue point
- PLAPS point
- phrenic line
- phrenic point
First question to ask on window?
Is there lung sliding?
What does the presence of lung sliding mean?
There is pleural fluid being made, lung moving and expanding normally (transudative process)
What acute respiratory failure pathology might have normal lung sliding?
- COPD/Asthma
- Pulmonary edema
- Pulmonary embolism
What can abscence of lung sliding mean?
(air has been replaced with something that transmits sound waves)
- Pneumothorax
- Pneumonia
- Pneumonic blebs
- Prior pleurodesis
What is the A profile?
lung sliding
What is the B profile?
B lines (3 or greater) an interstitial syndrome
What are B lines?
(artifacts formed by increased fluid in the pleura)
- arise from pleural line
- move with lung sliding
- erase A lines
What can the B profile indicated?
- Pulmonary Edema
- Pneumonia
- Pulmonary Fibrosis
- ARDS (diffuse)
What is the C profile?
Consolidation pattern
Can be seen in
-Pneumonia
-Atelectasis; Resportive or compressive
What is the A/B profile?
Unilateral B lines + sliding
Pneumonia
ARDS
Scarring
B prime profile?
Severe pneumonia
Data supporting BLUE protocol?
Landmark paper, CHEST, 2008 DIfferentiates cause of acute dyspnea with 90% accuracy Cardiogenic pulm edema > 97% SN/SP COPD/Asthma 89/97 PE 81/99 PTX 88/100 PNA 94-100% SP
What might you see in a patient with TB?
- Subpleural consolidations
- Interstitial syndrome
- Pleural effusions/atelectasis
- Cavitations
- Empyemas
- Subpleural nodules/thickening
- *NOT SPECIFIC**
