How do you characterize pleural effusions on POCUS between trace, small, moderate, and large?

Assuming the effusion is free-flowing and not loculated, there are a few equations out there that can help quantify pleural effusion volume based on whether the patient is supine at max inspiration, supine at end-expiration, or sitting upright.

In my hospitalist practice, I don't usually calculate b...

A more practical way/not very evidence-based but easy at the bedside to use with residents.

1. Identify a good area with the maximum amount of fluid seen and in the triangle consisting of the chest wall at the top/apex of the pic and the diaphragm and lung on either side below, with pleural fluid in ...