Microgram - Why Do We Occlude? (Experiment #1)


So by now you all pretty much know I obsess over the nitty gritty logistics of resuscitation and critical care. I find it extremely beneficial to test out theories and concepts in the form of experiments. I typically do not post even a quarter of the experiments I've done because I do not believe anyone but me really is amused. However, lately I have realized that the FOAMfrat subscribers are typically extremely nerdy and eat this %&%t up! So enjoy!

Welcome To The Lab!

We have always been taught to occlude the proximal end of the IV line when injecting medications into the luer lock port. I wanted to experiment with how necessary this technique is in several situations.

Question # 1

Do we need to provide proximal occlusion if we are pushing medication into a line that is currently on a pump?

Question # 2

Do we need to provide proximal occlusion if the bag is hanging to gravity?

Question # 3

Do we need to provide proximal occlusion if the bag is level to the catheter and resistance is added to the tip of the catheter?

Question # 4

What if the arm becomes occluded?