Dr. Steve Schauer, PGY15 on Instagram: "Got massive transfusion (or impending massive transfusion)? Reach for the double-lumen dialysis catheter. Here's why: 1. They can produce VERY high flow rates. With less than 250mmHg of pressure, flow rates can exceed 400mL/min (that's almost an entire unit of whole blood). As a point of reference, pressure bags are often inflated to 300mmHg. 2. It has 2 large lumens -- this is helpful when you need to infuse other drugs or blood products that can't be put