Episode 42: Thoracic ultrasound "Interstitial syndromes"

Описание: 1- In a patient with suspected interstitial lung disease (ILD), which lung ultrasound finding is considered the single most important feature to differentiate it from pulmonary edema?
1. The complete absence of A-lines throughout all lung zones examined.
2. A thickened, irregular, and fragmented pleural line.
3. The presence of numerous, confluent B-lines creating a “white lung” appearance.
4. A gravity-dependent distribution of B-lines, most prominent in the posterior lung bases.


2- A 78-year-old male with a history of heart failure presents with acute dyspnea. Lung ultrasound reveals preserved lung sliding, a smooth pleural line, and B-lines that are diffuse, bilateral, and most concentrated in the posterior-basal zones. What is the expected response to intravenous diuretic therapy?
1. The B-lines will remain stable, but lung sliding will become reduced.
2. No significant change in B-lines, but the development of subpleural micro-consolidations.
3. A rapid and significant reduction in the number of B-lines within 24-48 hours.
4. A shift in B-line distribution from symmetric to a patchy, asymmetric pattern.


3- The presence of small, peripheral micro-consolidations (less than 1 cm) in conjunction with B-lines is a strong indicator of which underlying pathology?
1. Fibrotic interstitial lung disease (ILD).
2. Lobar pneumonia.
3. Acute respiratory distress syndrome (ARDS).
4. Volume overload from severe renal failure.