A 45-year-old female presented with dyspnea and cough for 5 days. A POCUS lung ultrasound was performed which revealed a small pleural effusion. The image below was acquired in zone R1. What is the arrow pointing to?
A-line
B-line
Z-line
Explanation
The arrow is pointing to a B-line. You can see the bright echogenic line extend all the way to the full depth of the lung field. A Z-line would not extend all the way. See references.
References
https://wikem.org/wiki/Ultrasound:_Lungs
